Item Type: Bluetooth Audio Adapter Material: ABS Model: ZF380 Colour: Black Scope of Application: PC, TV, Car Speakers Bluetooth Version: 5.0 Built In Battery: Polymer Lithium Battery Built In Battery Capacity: 300mAh Function: Bluetooth Adapter Package List 1 x Adapter 1 x Charging Cable 1 x Audio Cable 1 x RCA Line 1 x Optical Cable 1 x Manual 1Transmitter mode: Transmit audio from non Bluetooth audio sources (TV, PC, TV box, CD/DVD player, projector, etc.) to Bluetooth headset/speaker. 2Receiving method: Transmit audio from Bluetooth audio sources (smartphones, tablets, Bluetooth TV/PC, game consoles, amplifiers, etc.) to non Bluetooth headphones/speakers/car/home audio systems. 3Support digital optical jack and 3.5mm audio jack (AUX and RCA), you can get maximum flexibility, support audio input and output. 4Built in DSP can reduce Bluetooth delay and provide CD level high fidelity stereo sound quality when you listen to music. 5Stream and control your music with a reliable connection range of up to 10m/ 33ft, and still has a clear audio quality.