Perfect match for Home Assistant Users: easy connection with Zigbee and will support Matter specifications in the future with a firmware update from for Home Assistant. High performance, low power, and secure solutions: powered by EFR32MG21 Wireless SoC, 2.4GHz Multi-Protocol USB Transceiver, supports full-speed USB 2.0 when plugged into the included USB extender. Reliable communications: transmits at a power of +20 dBm. Runs 2 protocols simultaneously: dual-protocol operation(Zigbee, Matter). Consistent Firmware Updates: Over-The-Wire (OTW) firmware update support. Supply:5V DC / up to 150mA USB:v2.0 full speed (12Mbps) Bridge:USB to UART, Silabs CP2102N Transceiver:Silabs EFR32MG21 Frequency:2.4GHz Antenna:PCB TX Power:up to +20dBm RX sensitivity:-104dBm (250kbps) Protocols:Zigbee, Matter, Thread Stack:EmberZNet Serial Protocol(EZSP) Colour:As Shown Material:ABS Package Contents: 1 x USB Stick 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.