1800mAh BatterySpecification: Type: Speaker Bluetooth Version: Bluetooth 4.0 Transmission Distance: 10 meters (33 feet) Frequency Response: 100Hz-16KHz FM Frequency Response: 100Hz-16KHz Battery: 3.7V 1800mAh Charging Time: 2.5-3.5H Input Voltage: 5V-500mAh Audio Port: TF/USB/AUX Speaker: 43W 40mm Bluetooth connection method: 1.Turn on the speaker or press the M button to enter Bluetooth mode. 2.Turn on the Bluetooth of phone or tablet to pair, search the device named SC208. 3.Click manually, the device will automatically pair and connect, and the pairing is successful, open the phone player, and choose to play your favorite song. Package Includes: 1 * Speaker 1 * USB Cable 400mAh BatterySpecification: Product features: Bluetooth, TF card, FM, USB, Aux Input Bluetooth specification: Bluetooth 4.2 Material: ABS Plastic Rubber Oil Transmission distance: 10 meters Battery capacity: 400mAh Loudspeaker specification: 36mm 4 Euro 3 watts Play time: 2-3 hours Size: 14.26.26.7CM Net weight: 180g Package include: 1 x bluetooth speaker 1 x USB cable