AWEI A997 Pro Active Noise Reduction Wireless Headset(Black)

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The AWEI A997 Pro Active Noise Reduction Wireless Headset is designed for everyday use. It features active noise reduction technology to minimize ambient noise. Product type: Heads et & Headphone Material: Lightweight construction Color: Black Bluetooth version: V5.3 Supported protocols: A2DP/AVCTP/AVDTP/AVRCP/HFP/SPP/SMP/ATT/GAP/GATT/RFCOMM/SDP/L2CAP profile Channel system: Dual channel Battery capacity: Built-in 300mAh Bluetooth mode music time: 24 hours Noise reduction mode music time: 17 hours Talking time: 24 hours Charging time: 2.5 hours Horn size: 40mm Horn impedance: 32Ω Horn sensitivity: 110dB ± 3dB ANC noise reduction: 22dB ± 3 Best call distance: Show more