MUCRO hook-up headset, microphone and control keys, 3.5mm jack. The earphone can be adjusted by the angle of the hook. The ergonomic design will fit everyone’s ears and wear comfortably. Don’t worry about slipping off easily. Not suitable for bass lovers, aiming to emphasize a balanced sound level and clear treble sound quality. Hook earphones are comfortable to wear in many scenes, such as running, yoga, gym, walking the dog, listening to the radio. Professional after-sales team,we provide after-sales reply within 24 hours. Listening test,noise isolation. Enjoy music，clear and crisp sound. Non-slip,Workout headphone. The elasticity of the hook can be adjusted, so there is no need to worry about falling loose.Equipped with three sizes of earplugs can be replaced. There is always a size that suits you. The only button can control pause playback and switch songs. The microphone can answer calls normally.The cord is 120cm long, suitable for most scenes. The 3.5mm headphone jack is suitable for ipad ipod and MP3 recorders, as well as mobile phones with 3.5mm jack audio transmission.3.5mm jack, Android devices with Type C audio output need a Type C to 3.5mm adapter.,Devices with a Lightning port for audio will require a Lightning to 3.5mm adapter. Earphone Storage Case : the Earphone Storage Case is convenient for storing and carrying earphones, without worrying about the earphone cable being pulled or the earphone being crushed. Earplugs of different sizes: Earplugs of different sizes fit comfortably with different ear.