GZCRDZ Air Conduction Open Ear Headphones,3.5MM Wired Headphones and Built-in Microphone Suitable for Outdoor Activitie

First:Product description it will not hurt your ears, which is different from ordinary headphones or earphones. Second:When you normally answer the phone or enjoy the music will not block your contact with the outside world. You can hear the voice of the outside world, whether you are listening to music or walking in the street! Car horn, doorbell, talk with friends, can be normal. Product parameters Quantity: 1pcs Size:14x14x5cm (L x WxH) Cable range:1.3m Weight:18g Impedance: 16 (Ω) Sensitivity: 116±3(dB) Speaker diameter: 16 (Φmm) Distortion rate: 0.1 (%) Frequency response range: 20-200000 (Hz) Model: H08M Plug type: 3.5MM Universal standard Package: 1 x 3.5MM Wired bone conduction headphone