RadioMaster MT12 Surface Radio Controller 2.4GHz ELRS/4-in-1 Multi-protocol 16CH Open Source EDGETX System Transmitter With ER3C-I/R85C Receiver The 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: RadioMaster Model: MT12 Physical 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 powerful STM32F407VGT6 with 1MB Flash * Preinstalled EdgeTX firmware * QC3.0 fast charging supporting 2.0A MAX * Compact design with excellent ergonomics * Oversized battery compartment - 2 x 18650 cells or a 2s 7.4v 5000mah battery pack (Batteries not included) * Standard Nano module compartment * RadioMaster standardized button layout * Rotatable antenna * Customizable base switches or 4 way joystick included*32 channels requires a 4in1 radio and additional 4in1 RF module along with compatible receivers R85C Receiver Specification: Item: R85C ReceiverPower supply: DC 4.5 -8.4VFrequency range: 2400-2483.5MhzSupport protocol: D8/D16/SFHSSOutput channel: 5CH PWMAntenna type: High-sensitivity 2.4G antennaTelemetry power: 100mW/20dBmWeight: 5.70gDimensions: 31.00*18.50*13.00mm ER3C-i Receiver Specification: Item: ER3C-i 2.4GHZ ELRS PWM ReceiverPower supply: DC 4.5-8.4VAntenna type: Built-in high-sensitivity ceramic antennaWireless protocol: ExpressLRS 3.3.0 pre-installedOutput channel: 3CH PWMTelemetry power: 10mWBattery voltage testing range: DC 4.0-35VWeight: 4.2gDimensions: 26.1*18.5*13.0mmFirmware: Device Category: Radiomaster 2.4Ghz/ Device: RadioMaster ER3C-i EdgeTX Operating SystemPreinstalled with EdgeTX, the MT12 has cutting edge software fit for its class-leading hardware. RadioMaster works closely with the EdgeTX team to develop new features and optimize the user experience for surface models. We will continue to contribute and support projects like EdgeTX, ensuring the concepts of open standards are carried forward. Package Included: 1* MT12 remote control 4in1 OR ELRS Version (Optional) 1* R85C or ER3C-i receiver 1* 18650 battery box 1 * switch expansion module 1 * Joystick expansion module 1 * Nano External TX Module Adapter Set 1* Genuine leather wrist strap 1* USB-C Data Cable 1* MT12 Carrying Case 1* MT12 Screen Protector 1* RadioMaster Sticker 1* Quick Guide