Mini portable Waterproof IPX4 bluetooth speaker allows you to enjoy your music anywhere outdoors or indoors wirelessly Unique waterproof design so you can use it in the rain in the pool in the showerin Bicycle almost anywhere With stents for easy mounting Built-in microphone makes it easy to take calls when your phone is not in arm's reach Built-in rechargeable battery charged via USB port (USB cable included) Compatible with all Bluetooth enabled media players mobile phones tablets and laptops Specifications: Bluetooth Version: V3.0+EDR Working Range: Up to 10m Loudspeaker Output: 3W Battery Charge Time: about 3~4 hours