Waterproof speaker,connect your various enabled devices to play any song through this speaker.
Mini Card FM hands-free wireless speaker.
With a mini SD TF card slot, you can play MP3 / MP4 files on TF card.
Play songs through AUX (3.5mm audio), TF memory card, USB.
The speakers have a built-in microphone, so you can phone at the speaker.
Support A2DP, AVRCP, headset, hands-free profile.
Built-in 3.7V/500mah rechargeable battery, but also through the USB interface, computer charging.