Bluetooth Version: V5.0
Battery Type：Lythium
Battery Size：450mAh
Battery Standby Time：Approx 100 hours
Working Time: 25 hours (ANC) approx.
25 hours (Bluetooth) approx.
12 hours (Bluetooth+ANC) approx

Battery Charge Time：Approx 2.5 hours
Noise cancellation: 18-20 dB
Speaker Size Φ: 40 mm
Frequency Response: 20-20K Hz
Sensitivity: 99 ± 3 dB
Impedance: 32 Ohm

Accessories
USB Charging Cable (0.3 meter PVC Cable)
3.5mm - 3.5mm Audio Cable（1.1m Braided Cable)