3.5MM JACK WIRED EARPHONE WITH MICROPHONE Compatible with all mobile phones, music players, portable gaming devices, and computers In-ear earbuds design,Soft silicone earbuds can conform instantly to your ears and prevent sound leakage Long wearing without pain with ears Lightweight design. Earphones with type-c Jack wired connectivity technology Earphones, high quality speakers bring perfect HiFi stereo sound quality. Wider frequency response for fuller listening enjoyment. Earphones built-in microphone, intelligent key o with play/pause, answer/hang up and previous song/next song Compatible with Android and Apple devices. Please wear correctly when you use the earphone, put an earplug with "L"in the left ear, earplug with "R" in the right ear. When listening to music with the earphone, we suggest you adjust the sound volume to a proper level to perfect your eardrum. To ensure your safe driving, please do not listen to music with the earphone when you drive. stay the earphone away from the magnetic field. No prior notice will be given if the specification and outline design of the earphone were adjusted due to technology improvement, please understand. Speaker size: 10mm Frequency range: 18-20,000Hz Sensitivity: 116±3dB(at 1 KHZ 0.5ms) Impedance: 320 Cable Length: 130cm with "L" in left ear, earplug the sound volume to a one when you drive. phone were