TP-Link Bluetooth 4.0 Nano USB Adapter (UB400) keyboard 1 sound experience for your

1 sound experience for your tv without any extra wires or speakers

8mm (115°) fixed lens DS-2CD2121G0-I with 1/3″ Progressive CMOS

Hikvision  E-HWID 2

Easy deployment without changing the existing network topology

and power can be transferred on one single cable

TP-Link Bluetooth 4.0 Nano USB Adapter (UB400) keyboard 1 sound experience for yourTP Link Bluetooth 4. 0 Nano USB Adapter (UB400) uses the latest Bluetooth 4. 0 with low energy (BLE) technology and is backward compatible with Bluetooth V3. 0 2. 1 2. 0 1. 1, Plug and Play for Win 8, Win 8. 1, and Win 10, Ultra small for convenient portability with reliable high performance.