'- Hands-free call has a built-in high-definition call microphone, you can answer the call hands-free \n- Bluetooth version 5.0 \n- Battery capacity : 1200mAh \n- Playing time : 2-5 hours \n- Speaker driver : 52mm \n- Support TF Card, USB Flash Drive, AUX, Bluetooth \n- Working frequency : 200Hz-20KHz \n- S/N : 85db \n- Charging : DC 5V
