Havit H630BT PRO Active Noise Cancelling Headphones Foldable Over Ear ANC Headset Handsfree Comfortable Travel Wireless Headsets

• Driver Size: 40mm (often used in headphones for balanced audio performance)
• Frequency Response: 20Hz – 20kHz (standard range for most headphones)
• Impedance: 32Ω (typical for Bluetooth headphones)
• Sensitivity: Around 100dB – 110dB
• Battery Life: 20-30 hours of playback time (depending on volume and usage)
• Charging Time: Approx. 2-3 hours for a full charge
• Bluetooth Version: 5.0
• Noise Cancellation Type: Active Noise Cancellation (ANC)
• Microphone: Built-in for calls
• Controls: Volume, play/pause, skip, and call answering buttons on the ear cup