RadioMaster MT12 Surface Radio Controller 2 4GHz ELRS 4 in 1 Multi protocol 16CH Open Source EDGETX System Transmitter With ER3C I R85C ReceiverThe RadioMaster MT12 is a pioneering open source surface radio and the first surface radio officially supported by EdgeTX ExpressLRS and the Multi module project Boasting 10 physical inputs and the capability to handle either 16 or 32 channels the MT12 is primed for a wide array of surface models from cars and trucks to boats and beyond Featuring extensive customizability and a versatile operating system the MT12 stands out as a highly configurable surface radio prepared to excel in virtually any scenario Description Brand RadioMasterModel MT12Physical dimensions 177 8 118 4 207 8mmWeight 480 gramsOperating frequency 2 400GHz 2 480GHz Internal RF Options 4 in 1 multi protocol ELRS 2 4GHzSupported protocols Module dependentRF power CC2500 and 4 in 1 20dBm max ELRS 24dBm max operational current 160mA for 4 in 1 400mA for ELRS 250mw Operational voltage 6 6 8 4v DC Control distance 1km 20dBm Operating system EdgeTXControl channels Maximum 16 Rx dependent Display 128 64 Monochrome LCDBattery 2 x 18650 or 21700 batteryCharging Built in USB C ChargingFirmware Upgrade method Via USB or SD cardGimbal Hall effect Module bay Nano size Compatible with TBS Nano Crossfire Nano Tracer RadioMaster Nano size modules Features Available with built in ExpressLRS or 4in1 MPM RF modules Featuring a powerfu