Polvcdg-X16 IPX8 Waterproof Bone Conduction Swimming Earphone Liquid Silicone 32G Memory Bluetooth 5.4 Running Earphone with Microphone Sports Headset

POLVCDG. New function of the product: You can connect two devices at the same time, and add the function of randomly playing songs. Headphone parameters: Speaker diameter: 16mm. Speaker frequency response range: 160Hz-16KHz. Frequency response value: 20Hz-20000 KHz. Product impedance: 8 ± 10%. Microphone sensitivity: 40 ± 3 dB. Sensitivity: 118dB. Working frequency band: 2.4GHZ. Charging voltage: DC-5V500mA. Audio format: MP3/WAV/WMA/FLAC/AAC. Product features: Dual devices are linked at the same time. ENC noise reduction. MP3 playback. IPX8 waterproof. Game 0 delay. Liquid Silicone Cable 2.0. Magnetic fast charging design. HIFI high definition call. AAC audio decoding. Built-in microphone for hands-free calls