Driver: 40 mm Impedance: 32 Ω Frequency Response: 20 Hz – 20 kHz ANC (Active Noise Cancellation) Depth: ~ 27 ± 3 dB ANC Frequency Range: ~ 100 – 1,000 Hz Bluetooth: v5.3 / v5.4 (depends on version) Working (Wireless) Range: ~10 m Battery Capacity: ~350 – 400 mAh Play Time: ~8 – 15 hours (varies by source) Charging Time: ~1.5 – 2 hours Connectivity: Bluetooth + 3.5 mm aux-in + TF card (in some models) Noise Canceling Type: Hybrid ANC + ENC for calls Design: Over-ear, foldable