BS39 Cool freedom, BT V5.0, with 1200mAh battery, for 6 hours of calls and music, support BT, calls, FM, TF, USB, AUX, TWS playback mode.
1. Speaker unit: 45mm 4Ω3W + 2 low frequency diaphragms.
2. Battery: 1200mAh A grade 18650.
3. BT specification: BT V5.0 JL.
4. Function: support wireless playback, call, FM, TF, USB, AUX, TWS playback mode.
5. Charging voltage: DC 5V, charging time is about 2.5 hours.
6. Calls / music time: about 6 hours (at 80% volume playback).
7. Sizes: 120*87*87mm. Weight: 327g.