<p>1. Audio Receiver: Bluetooth-compatible 5.2 chip, 15M transmission distance, stable transmission signal. Support -HD audio codec, low latency+high-fidelity audio effect.</p> <p>2. Output: Support 3.5mm Aux audio output, Toslink, coaxial output, and allow connecting different devices to (note: only one audio port output is supported, not three audio ports output at the same time).</p> <p>3. Long Battery Life: Built-in 500MAh battery, which can work continuously for 10 hours after charging for 2-3 hours.</p> <p>4. Applicable Occasions: It can be used to connect old audio\/wired speakers to on mobile phones\/tablets. It can also be used with car radio.</p> <p>Specification:</p> <p>Chip: QCC3031</p> <p>Bluetooth-compatible version: 5.2</p> <p>Input power: DC5V</p> <p>Transmission distance: 15M</p> <p>Power supply mode: Type-c port</p> <p>Battery capacity: 500Mah</p> <p>Duration: 10 hours</p> <p>Product function: Bluetooth-compatible reception\/coaxial\/AUX audio output\/optical fiber</p> <p>Product size: About 73x70x20mm\/2.87x2.75x0.78inch</p> <p>Weight of main engine: 60g</p> <p>colour:As Shown</p> <p>Material:Aluminum Alloy</p> <p>Package Contents:</p> <p>1 * Audio adapter</p> <p>1 * Antenna</p> <p>1 * Charging cable</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>