Bluetooth version: V4.0 + EDR Frequency: 2.0Hz-20 kHz Transmission distance: 10 M Lithium-ion battery: 180 mAh Charging time: 2 H Continuous talk time: 4-6 H Music playback time Bluetooth: 3-6 hours Standby time: 21 Hour sensitivity: 95DB Impedance: 32 ohms Speaker size: 32 mm The speaker is detachable so you can clean the hat packing list 1 x Bluetooth music scarf 1 x charging cable