Product parameters:<br>Bluetooth specification: Bluetooth 3.0<br>Bluetooth protocol: OPP, OBEX, SPP, A2DP, AVRCP, FIP, HS / HF, DUN, PROFILES<br>Wireless transmission range: 7-10M<br>Audio noise ratio: ≥80db<br>Battery capacity: 550-600mah<br>Built-in voltage: 3.7V<br>Normal Volume Play: 2H<br>Speaker Specifications: Φ77mm plus<br>Weight: 470G<br>Charging voltage: 5V / 500MA or 1000MAH<br>Speaker power: 3Ω3W<br>Frequency response: 120HZ-18KHZ<br>Size: 108 * 36 * 54MM<br> <br>Features<br>1. The use of advanced Bluetooth audio decoder chip, support for all input and output Bluetooth device;<br>2. clear sound soft dynamic, each structured;<br>3. Support TF card.<br>The built-in lithium battery.<br>5. can be directly connected phone / tablet PC / TV Bluetooth pairing and play music, Bluetooth receiver distance up to 10 meters;<br>6. Provide the best stereo<br>7. Noise Suppression Microphone<br>8. Provide superior fidelity sound<br>9. passive radiator subwoofer<br>10. Support MP3 card can also be used as external wired speakers, and Bluetooth speakers, Trinity, hands-free phone conversations, support mobile phone remote control operation, the song up and down, pause, answer the phone and hang up just tap the pause, the computer plus Bluetooth adapter, you can watch movies and voice chat<br /></p> <br /></p><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/558b99f4306dc4401b7c73d8-1-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/558b99f4306dc4401b7c73d8-2-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/558b99f4306dc4401b7c73d8-3-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/558b99f4306dc4401b7c73d8-4-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/558b99f4306dc4401b7c73d8-5-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/558b99f4306dc4401b7c73d8-6-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/558b99f4306dc4401b7c73d8-7-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/558b99f4306dc4401b7c73d8-8-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/558b99f4306dc4401b7c73d8-9-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><p style="text-align: center;">