1. Name: Square small bluetooth speaker
2. Material: plastic
3. Product size 86.5*72.3*31.6MM
4. Single machine weighs about 172g
5. Support FM radio, TWS, wireless transmission distance 10M
6. Support format U disk, TF card, with voice prompt, card insertion, radio, call function;
7. Bluetooth 5.0, memory 128g, built-in lithium battery, battery capacity 500mAh
8. Built-in voltage 3.7V, playback time 2h, power 5W;
9. Audio-to-noise ratio ≥90db, frequency response 120HZ-20KHZ.