Feature: 1. Wide compatibility, it can be widely used on your computer, laptop, home stereo system, Bluetooth audio, headset, smartphone, MP3 player, CD player. 2. Mini size, portable design, easy to carry. 3. Wireless playback, eliminating wired connection problems, through wireless connection and transmission, users can enjoy hifi music anywhere. 4. Plug and play, no driver required. 5. The device does not support voice calls or voice assist. Specification: Condition: 100% Brand New Item Type: Bluetooth 5.0 AdapterProduct Model: ZF360A Material: ABS Color: As Pictures Shown Weight: Approx. 48.0gBluetooth Version: Bluetooth 5.0 Bluetooth File: AVRCP, A2DP Built-in Battery: 300mAh polymer lithium battery Input Parameters: 5 V 1A Charging Port: Micro USB Receiver Mode Playback Time: About 10 hours Transmitter Mode Playback Time: About 7 hours Charging Time: 1 hour Working Distance: 10-15m/32.8-49.2 ft . Package List: 1 x Bluetooth 5.0 Adapter 1 x 3.5mm AUX Cable1 x USB Cable1 x Manual Note: 1. Please allow 1‑3cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.