FrSky 2.4G ACCST X6R 6/16CH Full Duplex Telemetry Receiver Description: Brand name: FrSky Item name: X6R Telemetry Receiver Dimension: 47.42x23.84x14.7mm (L x W x H) Weight: 15.4g Antenna: PCB Antenna (Mounted) + 150mm Coaxial Antenna with packing Number of Channels: 16CH (1~6ch from conventional channel outputs, 1~16ch from SBUS port) With RSSI output on board: PWM voltage output (0~3.3V) Operating Voltage Range: 4.0~10V Operating Current: 100mA@5V Operating Range: full range (&gt;1.5km) Firmware Upgradeable Package Included: 1 x FrSky X6R Telemetry Receiver