This Bluetooth speaker has functions such as Bluetooth playback, hands-free calling, and suction cup holder. It can be used as both a speaker and a mobile phone holder. The suction cup adopts 2 mm thick breast-grade silicone suction cup, which has super suction cup function. Its Bluetooth version is V3.0+EDR, the USB charging input voltage is 5V, and the charging time is 2 hours. Battery capacity 200mAh. Bluetooth Range: Up to 10 meters, play music wirelessly anywhere.