A evolved version of T-BEAM, T-Echo is designed with a focus on for Meshtastic compatibility, featuring Bluetooth and low power consumption. It utilizes the NRF52840 SoC, supporting Bluetooth 5 / Threads / Zigbee multi-protocol. T-SX1262 wireless ceiver module, using Semtech SX1262 LORA RF ceiver chip design, working in the 433MHz or 915MHz or 868MHz ISM frequenc band, integrated high stability TCXO 32MHz crystal oscillator, half-duplex ceiver module, power up to +22dBm, receiving sensitivity -139dBm. The module enables automatic ceiver switching, internal mission and reception channel isolation, and employs advanced LORA spread spectrum communication technology for robust anti-interference and privacy. This facilitates long-distance wireless data mission and reception. Colour:White Material:ABS Package Contents: 1 x T-ECHO host 1 x TYPE-C USB Cable 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.