1. Waterproof IPX7 Wireless Speaker 2. Bluetooth Version: Jieli 5.0+EDR 3. Built-in lithium battery: 600mAh 4. Speaker Size:52mm 5. Power output:5W 6. Power input: DC 5V 7. Bluetooth Distance 10M, call hands-free function 8. Support :TF/USB/FM/AUX/BT