Kunodi F4 Outdoor Portable Bluetooth Waterproof Speaker for travel (Green)

Specification: Version: V4.1 Power: 3W Voltage: 5V Weight： about 250g Play Time: about 5 hours Charging time: about 2 hours Signal range: about 10 meters Size: 71mm * 45mm(diameter * high) Compability: suit for smartphones/computer/laptop/3.5mm...