Model: Y-HS10 Supported Profiles: SBC, A2DP, AVRCP, HFP, HSP Noise Reduction Rate: 28 ± 3 dB Wireless Range: Up to 10m Audio - Speaker Diameter: 40mm - Impedance: 3202 - Sensitivity: 105±3dB (at 1kHz, OdB=20uPa) - Total Harmonic Distortion (THD): ≤ 5% (at 1kHz) - Channel Balance: ≤ 3dB (at 1kHz) - Frequency Response: 20Hz - 20kHz Battery & Power - Battery Capacity: 400mAh (Rechargeable) - Working Voltage: 3.7V - Standby Current: <8uA - Charging Port: USB-C -Charging Time:2 Hours Playback & Talk Time Talk Time: Up to 24 Hours Music Playback: BT On: Up to 40 Hours (at 80% volume) ANC On: Up to 60 Hours BT & ANC On: Up to 30 Hours (at 80% volume) Colour: Black