Radiolink AT10II 12 Channels RC Transmitter and Receiver R12DS 2.4GHz Radio Remote, Voltage Telemetry for RC Airplane, FPV Racing Drone, Quad, Helicopter, Car and Boat (Mode 2 Left-Hand Throttle)

Excellent Anti-interference--DSSS&FHSS communication technology and 7dBi high gain antenna make AT10II transmitter with stable transmission signal and the control range is up to 2.5 miles(4km) in the air.
Real-time Information--Airplane voltage monitor on AT10II screen when paired with PRM-01(package included). When AT10II equip with PRM-03(sold separately) module and flight controller crossflight APM, Pixhawk, Mini Pix, to enable telemetry information on the radio's screen like battery voltage, speed, altitude, RSSI, distance, and more.
Key Features--12 channels, Battery Voltage Telemetry, RSSI telemetry, Dual/Triple Rates, Throttle Lock, Fail-safe Setting, End Point Adjustment(EPA), Switch Customized, Channels Mix Control, etc.
User-Friendly Interface: support basic menu and advanced menu for different user needs and the user interface is quite intuitive and easy to navigate. No need for any radio setting to bind the transmitter with receivers.
Safety Remind: Signal Strength Indicator (RSSI) Alerts, low voltage alarm, failsafe protection. DD sounds and words alarming display on the 3.5" LCD screen to remind you when you are in noisy surroundings.