Transmission distance: 10M use time:

Bluetooth without ANC: 13-16 hours

Bluetooth with ANC: 9-10 hours

Standby time: 200 hours

Battery capacity: 550mah rechargeable lithium battery

Horn: Φ 40mm

Sensitivity: 108db

Impedance: 32 Ω

Frequency response: 20-20000hz

Packing specification: 49 * 45 * 49 (20 pieces / piece)

Gross weight: 15.2 kg

Net weight: 13.2 kg

Accessories include: USB charging cable audio cable English manual