features automatically connected once the earphone is taken out from charging box without any operation. And it adopts BT 5.0 version, so it has no delay, low power consumption, and perfect compatibility of signal. Mini size, you can carry it anywhere. Perfect for hands-free calls or to provide tunes while you are running, riding your bike or doing yoga. Features: Fashion and simple appearance. BT 5.0 version has no delay, low power consumption, and perfect compatibility of signal. Perfect compatibility: supports for IOS and for Android. Automatically connected once the earphone is taken out from charging box without any operation. High standard sound quality without distortion. Mini charging cabi support using for a long time. Intelligent noise reduction let you have a clear conversation in calling. Fingermark control and no need for pressing. Release pressure that caused by pressing to earphone, making your ear comfortable. Separation design of ear phone supports sharing the ear phone with other people. Supports connect two devices at the same time. Waterproofing grade is up to IPX5, waterproof, sweat-proof and dust-proof. Mini size, you can carry it anywhere. Perfect for hands-free calls or to provide tunes while you are running, riding your bike or doing yoga.