1. Long Battery Life:
Keep playing for longer with the internal 4000mAh lithium battery. Enjoy 7-10 hours of playing time at 70% volume.

2. Wide connectivity: 
Wirelessly pairs to bluetooth devices or can be wired to any audio device with an Aux 3.5mm headphone connection.

3. High-Fidelity Sound: 
Crisp, crystal-clear sound and robust bass flow from the BW-F4 through dual 45mm 2*10W speakers.

4. Built-in clear Mic:
With clear noise isolating microphone, handsfree function seamlessly connects to your phone and offers crystal clear communication.