Item Type: Bluetooth Speaker_x000D_ Material: ABS_x000D_ Bluetooth Version: Bluetooth 5.0_x000D_ Output Power: 3W_x000D_ Effective Distance: 10M_x000D_ Battery Capacity: 2200mAh_x000D_ Frequency Response: 30Hz-15kHz_x000D_ FM Frequency: 87-108MHz_x000D_ Separation: 35dB_x000D_ Signal to Noise Ratio: 65dB_x000D_ Speaker Impedance: 4_x000D_ _x000D_ How to Use:_x000D_ When connecting to Bluetooth, you can play music.1Built?in 2200mAh high?capacity lithium battery. Long standby time can ensure that you can use it for a long time. 2Bluetooth 5.0 technology, 10 meters barrier?free transmission, memory recognition has been paired. The equipment is connected quickly and intelligently, making it more convenient to use. 3Supporting for memory card play(not included), Bluetooth connection to meet your play needs anytime and anywhere. 4Built?in microphone, easy to call, intelligent noise reduction, high?definition call. 5The Bluetooth speaker is light in weight, compact and exquisite, and can be carried anywhere. 1 x Bluetooth Speaker 1 x Audio Line 1 x Charging Cable 1 x Chinese Manual