Wireless USB Bluetooth 4.1 Speaker IPX7 Waterproof Subwoofer with Built-in Mic HIFI Surround Sound 3D Stereo

specification: Bluetooth version V: 4.1 Available color: black. Output power: 5W Receiving distance: 10-15 meters Data transfer: greater than 3.0 Mbps / sec Charging voltage: 3.7V-4.2V Working voltage: 4.8V-5.5V Play time: 4 to 6 hours (depending on the volume, the time is different) Charging time: 2 hours Material: ABS + silicone + cowhide Product size: 10.5 * 5.5 * 2 cm / 4.13 x 2.17 x 0.79 feature Superior sound quality Distortion-free stereo even at maximum volume - perfect home and travel speakers Rugged design The D1S is one of the most rugged Bluetooth speakers. No damage even if the car is over IPX7 waterproof IPX7 wireless portable Bluetooth speaker can be soaked under water for 33 feet and 30 minutes Bicycle speaker Easily connect any 1/4-screw unit (not including the bicycle stand) and enjoy music while cycling Ultra-portable You can easily pick up and put the music in your bag Incredible battery life Up to 12 hours of music playback time after one charge - more than one week of playback time (based on average usage time) Bluetooth 4.1 connection Unlike most other speakers, the D1S uses the latest Bluetooth technology to maximize device compatibility and pairing speed Package Contents: 1 x speaker 1 x USB cable 1 x AUX audio data cable 1 x manual