Introduction：
Bluetooth Version： 5.3 Speaker: Φ78mm plus, 4Ω 8W *2 Speakder battery: 3.7V/ 2400mAh Microphone battery: 3.7V/ 800mAh Frequency response : 120Hz-18KHz SNR: ≥95db Working distance: 10m Charging current: 5V/1000mA Music time: ≈ 3 Hrs Charging time: ≈ 4 Hrs Size:285*140*125mm Product weight: 1383g Material: ABS+Fabric Functions: BT+USB+TF+MIC+LED+Karaoke