1. 12V /1A power supply. 2. Heat dissipation is recommended, such as adding heat sink or radiator fan. 3. Antenna should be screwed first, then plug the power adapter, finally connect the device. 4. The output could reach 36dBm, when input power is 18dBm or 19dBm (default gain is 18dB). Colour:silver Material:Aluminum Alloy Applications IEEE 802.11a/ b/g/ac WLAN System Smart Home Systems Signal Extender Drone Signal Extender Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * WiFi signal extender 2 * antenna 3 * power cord 2 * connection cable (Wire styles and colors are random,don't accept the specified color and styles ) 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.