1. The appearance of the product is exquisite; The latest Bluetooth 5.2 technology2. Adopt the latest QCC high-end Bluetooth chip design; With independent A and B buttons, the connected devices can be controlled independently3. With a separate audio light to identify the audio transmission mode; Support RX, TX dual connection function4. -C charging port, more convenient to use; 3.5MM audio input/output interface, strong versatility5. Built-in rechargeable battery, long battery life; The product connection is simple, without any cumbersome driving and downloading APPBluetooth version: Bluetooth V5.2Device chipset: Qualcomm QCC3040Support protocol: RX:A2DP AVRCP TX:A2DP Operating frequency band: 2.402GHz -2.480GHzPower level: (Class II)Signal to noise ratio: 99.3dbDistortion: 0.1%Support dual stream (TX mode)Support multipoint (Rx mode)Operating current: Less than 22mABuilt in battery: 250mahCharging current: About 200mACharging time: about 2 hoursBattery life: RX Greater than 20H, TX Greater than 12HBluetooth distance: Greater than 10m (open place)Charging mode: USB TYPE-C 5V/0.5AInput / output connection mode: 3.5mm audio interfaceCompatible:Plug and play, no need to drive or download APP.CODEC TX MODE:aptX Adaptive/aptX HD/aptX LL/aptX/TV/computer/set-top box to two bluetooth devices speaker/headphonesCODEC RX MODE:aptX Adaptive/aptX HD/aptX/AAC/Mobile phone/tablet/computer (two devices can be connected at the same time) - ordinary speaker/amplifiercolor:BlackMaterial:ABSPackage Contents:1 x Wireless Audio Adapter1 x English manualOnly 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.