Bluetooth protocol: 5.0 Channel: stereo How to use: Earplug type Single and double ears: bilateral three-dimensional description: 1. English voice prompt. 2. Send out the phone number. 3. Visualize the...
product name headset Headphone cord length: about 1.2 meters Headphone wire: TPE round wire Interface type: 3.5mm Frequency response range: 20-20000Hz Impedance: 320 Sound pressure: 96 ± 3db Sensitivity: 108db...