Havit H655BT wireless bluetooth headphones black

Efficiency Product color: Black Market segment: Consumer Product type: Headphones Application: Calls/Music Wearing style: Headband Game mode: Yes Ports and interfaces Frequency response (music mode): 20 - 20000 Hz USB connector: USB Type-C Bluetooth: Yes Wireless router range: 10 m Connectivity: Wired and wireless 3.5mm connector: Yes Bluetooth profiles A2DP AVDTP AVCTP AVRCP SPP HFP Bluetooth version: 5.3 Battery Battery capacity: 700 mAh Music playback time: 76 hours Charging time: 1.5 hours Supported battery type: Built-in Microphone Noise-canceling microphone: Yes Microphone type: Built-in microphone Headphones Noise reduction level: Up to 35 dB Noise reduction: Yes Impedance: 32 Ω Headphone sensitivity: 102 dB Noise reduction type: Active Speaker diameter: 4 cm