Twin Dual-band 1W transceivers. Experience unmatched reliability with dual-band ELRS Gemini Xrossband. ExpressLRS Gemini 2.4GHz. ExpressLRS Gemini 868/900MHz. Powerful Cooling System with dual 1-watt transceivers, the boasts serious power, complemented by an advanced cooling system to keep your module cool even on the hottest days. Item: Dual Band Module with Micro-type Adapter Regulatory Domain:ISM 2.4GHz, FCC915MHz MCU:ESP32(main), ESP32c3(aux, as ESP backpack) RF chip: LR1121 x 2 RF:Dual 1000mW/Dual band Gemini ELRS Frequency Range:2400 MHz - 2479 MHz/903MHz - 927MHz Maximum packet rate:500Hz (1000Hz soon in ExpressLRS V3.4) Minimum receiver refresh rate: 50Hz RF Output Power:1000mW x 2 Module bay adapters: Micro-standard 5pin socket & Nano standard 8pin socket Wifi Support:Yes Bluetooth support:Yes Built-in RGB light strip XT30 Power supply voltage:DC6V - 16.8V Weight:87.20g (with antenna)/71.10g (without antenna) Dimension:80x45x40mm (without antenna) Due to different product batches, the appearance , which does not affect the use. Colour:As Shown Material:Plastic Package Contents: 1 * Dual Band Module with Micro-type Adapter 2 * Dual Band 2.4GHz/900 MHz Antennas 1 * Nano Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.