Adopt Qualcomm QCC3040 chip, true Bluetooth 5.2, ceramic antenna, touch button KB9P 24Bit:16-24Bit, Not compatible with Android Box/Android TV USB+AUX dual input, support one for two, can connect 2 Bluetooth headsets or Bluetooth speakers at the same time; USB input supports 16-24Bit 48-96Khz One for two supports dual adpaitve, HD, , requires 2 headsets to support the same encoding at the same time. Supported encoding: Adaptive HD LL , different encodings have different indicators; you can use the assistant to switch Adaptive's high-quality sound and low-latency mode, HD and LL encoding, etc. -developed, later function, can updated firmware Driver-free, computer system XP WIN7-10 LINUX, etc., and supports voice calls Game console: for -5, SWITCH, Android box Some Android : for for for New Android OS. Or devices with 3.5 interface/red and white lotus output interface can be used Bluetooth Standard:Bluetooth v5.2 Content:Audio Interface:USB Wireless Type:Bluetooth Model Number:QCC3040 24Bit Bluetooth Adapter color:Black Material:Metal Package Contents: 1 x QCC3040 Bluetooth Audio Transmitter Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.