Waterproof circular bluetooth speaker with suction cup C6 Blue

Circular waterproof speaker with suction cup. Play music via Bluetooth connection or through a MicroSD card. Free hands. Micro SD card reader. Charge via MicroUSB connection. Includes MicroUSB-USB charging cable and carabiner. Working time: 6-8 hours. Charging time: 3-4 hours. Frequency range: 120Hz - 22kHZ. Signal/noise ratio: ?90dB. Charging voltage: 5V ± 0.3. 3.7V/1000mAh lithium battery Operating distance: up to 10 meters.