Features: Low voltage alarm function Each transmitter and receiver has its unique ID 3inch touchscreen interface, more convenient to control Adopts 2.4GHz AFHDS 2A digital proportional computerized rc system Free software updates online allowing you to keep your system current Switchable control mode, comfortable to control the transmitter stick Specifications: Transmitter: Product Model: FS- i6S Channels: 10 Models: quadcopter, robotics, engineering vehicles Wireless frequency: 2.4GHz Transmission power: <20 dBm Wireless protocol: AFHDS 2A Range: 500 1500m (in the air) Channel resolution: 4096 Battery: 1.5AA * 4 Charging port: None Low voltage alarm: 4.2V Antenna type: Built-in dual antenna Display: capacitive touch screen Language: Chinese and English USB simulator compatibility: USB emulator Data port: PS / 2 (PPM) Temperature range: -10 + 60 Humidity range: 20% -95% Online Update: Yes Color: white Dimensions: 179mm x 81mmx 161mm Weight: 410g Certification: CE, RCM, FCC ID: N4ZFLYSKYI6S FS-iA10B Receiver Channel: 10 2.4G Mode: The second generation of an enhanced version of the automatic FM digital system Antenna Length: 26mm * 2 (dual antenna) Input Power: 4.0-6.5V DC Weight: 19.3g Size: 51mm*34mm*15mm Color: Black i-Bus Interface: Yes Data Acquisition Interface: Yes Model Type: Airplane / Glider / Helicopter Compatible Transmitter: Compatible with FS-i4, FS-i6, FS-i6S, FS-i10, FS-iT4S Package Information: Package size: 27 * 22 * 11cm / 10.6 * 8.7 * 4.4in Package weight: 720g / 1.59lb Package List: 1 * Flysky FS-i6s Transmitter 1 * Flysky FS-iA10B Receiver