Products

Suppliers
Filter Gallery
299,518

Wholesale Data Transmission

Products
Video Transmission Transmission Cable Remote Wireless Data Transmission Charging Cable Data Cable

Sorry! No matches were found.

Optic Fiber Fpv Fiber Optic Image Data Module Relay Extender Module Supports Wired Signal Transmission up to 20 Kilometers

Optic Fiber Fpv Fiber Optic Image Data Module Relay Extender Module Supports Wired Signal Transmission up to 20 Kilometers

US $ 199-299 / Piece FOB
1 Piece (MOQ)
More
Main Products: Solar Power Generator, Portable Power Station, Home Emergency Storage, LiFePO4 Battery, Solar Panels, Solar Air Conditioner
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Chengdu Future International Co., Ltd.

Guangdong, China Since 2024
Chat Now Send Inquiry
Delivery Drones Long Range Communication Manufacturer Fixed Wing Uav Video Telemetry and Data Transmission

Delivery Drones Long Range Communication Manufacturer Fixed Wing Uav Video Telemetry and Data Transmission

US $ 985-1,055 / Piece FOB
1 Piece (MOQ)
More
Application : Video Transmission, Data Transmission, Image Transmission
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shenzhen Xingkai Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2023
Chat Now Send Inquiry
10W 56Mbps Fpga Manpack Range 30km Radio Data Transmission Terminal

10W 56Mbps Fpga Manpack Range 30km Radio Data Transmission Terminal

US $ 999-19,999 / Piece FOB
1 Piece (MOQ)
More
Main Products: IP Mesh Radio, Cofdm, Uav, Wireless Transmission System, Uav Detection System, Uav Data Link, Uav Airborne Vehicles
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
Gateway G1-E (3-channel Bluetooth) Data Transmission

Gateway G1-E (3-channel Bluetooth) Data Transmission

US $ 180-199 / Piece FOB
1 Piece (MOQ)
More
Power Supply Mode : Active
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hanven Technology Limited

Manufacturer/Factory,Trading Company

Guangdong, China Since 2024
Chat Now Send Inquiry
Wireless Transmission IP Mesh Radio Station Full IP Duplex Transparent Data Transmission

Wireless Transmission IP Mesh Radio Station Full IP Duplex Transparent Data Transmission

US $ 2,699-3,599 / Piece FOB
2 Pieces (MOQ)
More
Main Products: IP Mesh Radio, Cofdm, Uav, Wireless Transmission System, Uav Detection System, Uav Data Link, Uav Airborne Vehicles
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
56Mbps Data Rate 4W Long Transmission Distance Drone Ridao Datalink

56Mbps Data Rate 4W Long Transmission Distance Drone Ridao Datalink

US $ 99-999 / Piece FOB
1 Piece (MOQ)
More
Work Mode : TDD
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
CD100nmt Ofdm Long-Distance Data Transmission Device

CD100nmt Ofdm Long-Distance Data Transmission Device

1 Set (MOQ)
More
Main Products: RF Repeaters, Antennas, Passive Components, in Building System, Wireless Signal Jammer
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Shenzhen Boostel Technologies Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2017
Chat Now Send Inquiry
Data Video Link Long Distance Wireless Video Transmission for Uav

Data Video Link Long Distance Wireless Video Transmission for Uav

US $ 1,699 / Piece FOB
1 Piece (MOQ)
More
Usage : Radio, Television, Observatory, Satellite, Plane, Ship, Car
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
IP67 Wireless Long Range 20km 90Mbps Mesh Transmission Video Data Base Station

IP67 Wireless Long Range 20km 90Mbps Mesh Transmission Video Data Base Station

US $ 3,499-4,999 / Piece FOB
1 Piece (MOQ)
More
Main Products: IP Mesh Radio, Cofdm, Uav, Wireless Transmission System, Uav Detection System, Uav Data Link, Uav Airborne Vehicles
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
Fpv Optical Fiber Image Data Module for Fpv Drone Image Transmission to Ground Receiver Optical Link Sky Endpoint Underwater Robo

Fpv Optical Fiber Image Data Module for Fpv Drone Image Transmission to Ground Receiver Optical Link Sky Endpoint Underwater Robo

US $ 808.4 / Piece FOB
1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shenzhen Xingkai Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2023
Chat Now Send Inquiry
Anti-Jamming Characteristics 1420-1530MHz 10W Amplifier Optimises Uav Data Chain Video Transmission Performance

Anti-Jamming Characteristics 1420-1530MHz 10W Amplifier Optimises Uav Data Chain Video Transmission Performance

US $ 1 / Piece FOB
1 Piece (MOQ)
More
Main Products: RF Power Amplifier, Horn Antenna, RF Miceowave Pulse Power Amplifier, RF Microwave Filter, Isolators/Circulators, Active/Passive Component, Multiplexer, Power Divider, Termination& Attenuator, up/Down Converter
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Nanjing Shinewave Technology Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
1W Long Range 15km HD 1080P Video Transmission Uav Video Data Link

1W Long Range 15km HD 1080P Video Transmission Uav Video Data Link

US $ 1,599-1,999 / Piece FOB
1 Piece (MOQ)
More
Condition : New
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
Mobile Phone Cable Fiber Optic Equipment Communication Module Communication Cable Optical Fiber Electric Wire & Cable
Optical Equipment Fiber Image Data Module Relay Extender Module for Fpv Supporting 2km/3km/5km/10km Signal Transmission

Optical Equipment Fiber Image Data Module Relay Extender Module for Fpv Supporting 2km/3km/5km/10km Signal Transmission

US $ 229-459 / Piece FOB
1 Piece (MOQ)
More
Main Products: N/a
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shenzhen Pioneer Times Trading Co., Ltd.

Trading Company

Guangdong, China Since 2024
Chat Now Send Inquiry
V20 Video Link 2X2MIMO HD Wireless Digital Data Transmission Link, 3 in 1

V20 Video Link 2X2MIMO HD Wireless Digital Data Transmission Link, 3 in 1

US $ 1,929.9 / Piece FOB
1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shenzhen Nuobashi Trading Co., Ltd

Trading Company

Guangdong, China Since 2024
Chat Now Send Inquiry
4W 1.4GHz IP Mesh Drone Image Transmission Data Link

4W 1.4GHz IP Mesh Drone Image Transmission Data Link

US $ 99-999 / Piece FOB
1 Piece (MOQ)
More
Main Products: IP Mesh Radio, Cofdm, Uav, Wireless Transmission System, Uav Detection System, Uav Data Link, Uav Airborne Vehicles
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
OEM Good Durability Temperature Stability Data Transmission Sc-Sc

OEM Good Durability Temperature Stability Data Transmission Sc-Sc

US $ 0.88 / Piece FOB
15,000 Pieces (MOQ)
More
Certification : RoHS, CE
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Hangzhou Fuyang Tangyi Industrial Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2022
Chat Now Send Inquiry
Optic Fiber Fpv Fiber Optic Image Data Module Relay Extender Module Supports Wired Signal Transmission up to 20 Kilometers

Optic Fiber Fpv Fiber Optic Image Data Module Relay Extender Module Supports Wired Signal Transmission up to 20 Kilometers

US $ 199-299 / Piece FOB
1 Piece (MOQ)
More
Main Products: Solar Power Generator, Portable Power Station, Home Emergency Storage, LiFePO4 Battery, Solar Panels, Solar Air Conditioner
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Chengdu Future International Co., Ltd.

Guangdong, China Since 2024
Chat Now Send Inquiry
Factory Sc Yellow Fiber Adapter Optic FTTH Data Transmission Sc-Sc

Factory Sc Yellow Fiber Adapter Optic FTTH Data Transmission Sc-Sc

US $ 0.88 / Piece FOB
15,000 Pieces (MOQ)
More
Application : Communication
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Hangzhou Fuyang Tangyi Industrial Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2022
Chat Now Send Inquiry
Fiber Optic Image Data Modulefpv 10km Drone Anti-Interference Equipment Has Fast Transmission Speed

Fiber Optic Image Data Modulefpv 10km Drone Anti-Interference Equipment Has Fast Transmission Speed

US $ 788.81 / Piece FOB
1 Piece (MOQ)
More
Main Products: Mimos Mesh WiFi Mesh Networks MIMO Mesh Systems, Definition Cofdm Video Transmitter, RF Tactical Radio Communication Video Radio Link, Ptt Military Wireless Mesh Network, Flight Controller RC Telemetry Video Data Link, Drone Shield Drone Detection RF Power Amplifier, Anti Drone System Counter Uav System Counter, Drone Shop Uav Drones for Sale Vtol Uav, Quadcopter Unmanned Aerial Vehicle Helicopter, Long Range RC Drone
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shenzhen Xingkai Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2023
Chat Now Send Inquiry
Optic Fiber Fpv Fiber Optic Image Data Module Relay Extender Module Supports Wired Signal Transmission up to 20 Kilometers

Optic Fiber Fpv Fiber Optic Image Data Module Relay Extender Module Supports Wired Signal Transmission up to 20 Kilometers

US $ 199-299 / Piece FOB
1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Chengdu Future International Co., Ltd.

Guangdong, China Since 2024
Chat Now Send Inquiry
Related Videos
  • What is Optic Fiber Fpv Fiber Optic Image Data Module Relay Extender Module Supports Wired Signal Transmission up to 20 Kilometers
    What is Optic Fiber Fpv Fiber Optic Image Data Module Relay Extender Module Supports Wired Signal Transmission up to 20 Kilometers
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is 10W 56Mbps Fpga Manpack Range 30km Radio Data Transmission Terminal
    What is 10W 56Mbps Fpga Manpack Range 30km Radio Data Transmission Terminal
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is 56Mbps Data Rate 4W Long Transmission Distance Drone Ridao Datalink
    What is 56Mbps Data Rate 4W Long Transmission Distance Drone Ridao Datalink
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is CD100nmt Ofdm Long-Distance Data Transmission Device
    What is CD100nmt Ofdm Long-Distance Data Transmission Device
    Negotiable
    1 Set (MOQ)
    Contact Supplier
OEM Patch Cord Good Signal Data Transmission Jump Cablr Sc-Sc G652D G657A1 G657A2

OEM Patch Cord Good Signal Data Transmission Jump Cablr Sc-Sc G652D G657A1 G657A2

US $ 0.88 / Piece FOB
15,000 Pieces (MOQ)
More
Main Products: Coaxial Cable, Cable
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Hangzhou Fuyang Tangyi Industrial Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2022
Chat Now Send Inquiry
Fhss Ifs Easy Install Drone Airborne Video Transmission Data Link

Fhss Ifs Easy Install Drone Airborne Video Transmission Data Link

US $ 99-999 / Piece FOB
1 Piece (MOQ)
More
Condition : New
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
High Flying Hf8104W WiFi Router Ethernet to WiFi Wireless Router Data Transparent Transmission

High Flying Hf8104W WiFi Router Ethernet to WiFi Wireless Router Data Transparent Transmission

US $ 8.9 / Piece FOB
100 Pieces (MOQ)
More
Main Products: IC Chip, IGBT, LED Module, Silicon-Controlled Rectifier, Instrument Components, Electric Motor and Controller, Iot Product, GPS Module, Automotive Electronics
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Hangzhou Electric Driving Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2014
Chat Now Send Inquiry
UVA Accessories Optical Fiber Equipment Image Data Module Relay Extender Module for Fpv 3km To15km of Wired Signal Transmission

UVA Accessories Optical Fiber Equipment Image Data Module Relay Extender Module for Fpv 3km To15km of Wired Signal Transmission

US $ 208-438 / Piece FOB
2 Pieces (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shenzhen Pioneer Times Trading Co., Ltd.

Trading Company

Guangdong, China Since 2024
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

Wholesale Fast Charging Mobile Power Bank Fantasy Wireless Charger and Wireless Data Transmission

Wholesale Fast Charging Mobile Power Bank Fantasy Wireless Charger and Wireless Data Transmission

US $ 26-29 / Piece FOB
1,000 Pieces (MOQ)
More
Main Products: Kiosk, Digital Signage, OLED Displau, Qled Display, LCD Display, LCD Monitors, Advertising Players, LCD Monitor, Touch Screen Kiosk
Contact Supplier
Audited Supplier Audited Supplier Since 2024
SHENZHEN TOPADKIOSK DISPLAY TECHNOLOGY CO., LTD.

Manufacturer/Factory,Trading Company

Guangdong, China Since 2024
Chat Now Send Inquiry
Dual-Band Mesh Ad Hoc Network Image Transmission Base Station for Urban Emergency Operations

Dual-Band Mesh Ad Hoc Network Image Transmission Base Station for Urban Emergency Operations

US $ 4,100-5,500 / Piece FOB
2 Pieces (MOQ)
More
Application : Video Transmission, Optical Signal Transmission, Data Transmission, Image Transmission
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
Cofdm Modulation Video Encryption Transmission Modules

Cofdm Modulation Video Encryption Transmission Modules

US $ 4,500 / Set FOB
1 Set (MOQ)
More
Main Products: Uav, Quodcopter, Hexacopter, Wireless Audio Video Cofdm Transmitter, Uav Transmitter and Receiver, Uav Transmission Module, Wireless HDMI Video Transmitter, Uav Carbon Fiber Case, Wireless AV Transceiver, Cofdm Module
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Shenzhen Keweitai Enterprise Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2014
Chat Now Send Inquiry
4G DTU 232 Wireless Data Terminal WiFi GPRS Equipment Ttl 485 Transparent Transmission RS485 RS232 Ttl DTU Manufacture Wholesale

4G DTU 232 Wireless Data Terminal WiFi GPRS Equipment Ttl 485 Transparent Transmission RS485 RS232 Ttl DTU Manufacture Wholesale

US $ 49-65 / pcs FOB
1 pcs (MOQ)
More
Type : Wireless
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shenzhen Toprie Electronics Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
Te-LTE Private Network Mobile Command End Wireless Transmission System

Te-LTE Private Network Mobile Command End Wireless Transmission System

US $ 1,899-2,599 / Piece FOB
1 Piece (MOQ)
More
Main Products: IP Mesh Radio, Cofdm, Uav, Wireless Transmission System, Uav Detection System, Uav Data Link, Uav Airborne Vehicles
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
ODU Outdoor Unit 13G Microwave Transmission Xmc Xmc-2 52413094 52413095 Xmc-2-13G

ODU Outdoor Unit 13G Microwave Transmission Xmc Xmc-2 52413094 52413095 Xmc-2-13G

US $ 836-975 / Piece FOB
2 Pieces (MOQ)
More
Information content : Data
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hengtian Hongyang (Beijing) Information Technology Co., Ltd

Manufacturer/Factory

Beijing, China Since 2024
Chat Now Send Inquiry
10.1 Inch LTE Handheld Mobile Command Terminal Transmission

10.1 Inch LTE Handheld Mobile Command Terminal Transmission

US $ 1,899-2,599 / Piece FOB
1 Piece (MOQ)
More
Main Products: IP Mesh Radio, Cofdm, Uav, Wireless Transmission System, Uav Detection System, Uav Data Link, Uav Airborne Vehicles
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhongke Lianxun (Shenzhen) Technology Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
Drones Accessories Long Range Wireless Video and Audio Transmission Modules

Drones Accessories Long Range Wireless Video and Audio Transmission Modules

US $ 4,500 / Set FOB
1 Set (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Shenzhen Keweitai Enterprise Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2014
Chat Now Send Inquiry
Hua Wei Optixstar C820 a AC Model Ethernet Oam Osu Wdm Tmh4uxcl 212 Ms-Otn Optical Transmission Access Device

Hua Wei Optixstar C820 a AC Model Ethernet Oam Osu Wdm Tmh4uxcl 212 Ms-Otn Optical Transmission Access Device

US $ 715-835 / Piece FOB
2 Pieces (MOQ)
More
Main Products: Wireless Microwave, Switch, Router, Firewall, Optical Transmission Equipment, Data Storage
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hengtian Hongyang (Beijing) Information Technology Co., Ltd

Manufacturer/Factory

Beijing, China Since 2024
Chat Now Send Inquiry
4G Global Tracking Real Time Temperature Humidity Monitoring Wireless Data Transmission Sensor

4G Global Tracking Real Time Temperature Humidity Monitoring Wireless Data Transmission Sensor

US $ 85-88 / Piece FOB
1 Piece (MOQ)
More
Function : Bluetooth-enabled
Contact Supplier
Audited Supplier Audited Supplier Since 2012
Shenzhen Joint Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Guangdong, China Since 2012
Chat Now Send Inquiry
Outdoor Zero Signal Zone Emergency Video Audio Transmission

Outdoor Zero Signal Zone Emergency Video Audio Transmission

US $ 4,500 / Set FOB
1 Set (MOQ)
More
Main Products: Uav, Quodcopter, Hexacopter, Wireless Audio Video Cofdm Transmitter, Uav Transmitter and Receiver, Uav Transmission Module, Wireless HDMI Video Transmitter, Uav Carbon Fiber Case, Wireless AV Transceiver, Cofdm Module
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Shenzhen Keweitai Enterprise Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2014
Chat Now Send Inquiry
Hua Wei Optixstar C810 a AC Model Ethernet Oam Osu Ms-Otn Optical Transmission Access Wdm Network Interface Device Otn CPE

Hua Wei Optixstar C810 a AC Model Ethernet Oam Osu Ms-Otn Optical Transmission Access Wdm Network Interface Device Otn CPE

US $ 715-835 / Piece FOB
2 Pieces (MOQ)
More
Type : Fiber Transceiver
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hengtian Hongyang (Beijing) Information Technology Co., Ltd

Manufacturer/Factory

Beijing, China Since 2024
Chat Now Send Inquiry
Video Transmission Transmission Cable Remote Wireless Data Transmission Charging Cable Data Cable
View More

Related Searches

Data Cable Wholesale Mobile Phone Transmission Cable Digital Data Mobile Data Data Switch Usb Data Data Transmission Digital Transmission Mobile Phone Data

Browse by Categories

Home > Consumer Electronics > Mobile Phone & Accessories > Mobile Phone Cable
1/834
TOP

Search Filter

Categories

More Less
  • Mobile Phone Cable
  • Fiber Optic Equipment
  • Communication Module
  • Communication Cable
  • Optical Fiber
  • Electric Wire & Cable
  • Electrical Control System
  • Wire Harness
  • Drone Accessories
  • Emission Transmission Equipment

Certification

More Less
  • ISO
  • GS
  • CE
  • RoHS

Materials

More Less
  • Steel

Standard

More Less
  • Nonstandard
  • Standard

Style

More Less
  • Independence Tower
  • Cable Tower

Usage

More Less
  • Tension Tower
  • Terminal Tower
  • Crossing Tower
  • Angle Tower
  • Transposition Tower
  • Branching Tower
  • Flying Angle Tower

Company Type

More Less
  • Manufacturer/Factory
  • Trading Company
  • Group Corporation
  • Individuals/SOHO
  • Other

Company Location

More Less
  • Guangdong
  • Shandong
  • Jiangsu
  • Zhejiang
  • Shanghai
  • Hubei
  • Anhui
  • Hebei
  • Henan
  • Beijing
  • Fujian
  • Hunan
  • Jiangxi
  • Sichuan
  • Tianjin
  • Shaanxi
  • Liaoning
  • Chongqing
  • Guangxi
  • Yunnan
  • Hainan
  • Jilin
  • Hongkong S.A.R.
  • Shanxi
  • Guizhou
  • Xinjiang
  • Gansu
  • Ningxia
  • Taiwan, China

Product Types

More Less
  • SecuredTrading
  • Buy Sample
Reset Done