<p>1. and appearance design, excellent product quality.</p> <p>2. Ultra-long battery life playback time.</p> <p>3. Last number call back function.</p> <p>4. Volume memory function.</p> <p>5. Multi-function use for sports, car, home audio and video.</p> <p>6. Clear transmission, pleasant sound quality, stable signal.</p> <p>7. Can switch Bluetooth\/FT card to at .</p> <p>8. Built-in microphone, one-click answer\/reject\/hang up\/redial call.</p> <p>9. Support one-to-two, you can connect two mobile phones at the same time.</p> <p>Dimensions: 6x2.65x2cm</p> <p>Technical parameters:</p> <p>Input voltage: DC5V</p> <p>Battery capacity: 250mAH</p> <p>Bluetooth version: V5.3</p> <p>Working distance: 10 meters</p> <p>Audio interface: 3.5MM audio jack</p> <p>Charging interface: TYPE-C</p> <p>TF card slot: 1 (insert TF card to )</p> <p>Battery life: about 14H</p> <p>Charging time: about 2H</p> <p>Signal-to-noise ratio: 60DB</p> <p>Distortion: Less than 0.1%</p> <p>Frequency response rate: 20HZ-15KHZ</p> <p>Left and right separation: 60DB</p> <p>Microphone effective distance: 0-1M</p> <p>Colour:Black</p> <p>Material:plastic</p> <p>Package Contents:</p> <p>1 x Car Bluetooth Receiver</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>