The earhook of bluetooth headphone with green light, that click the button 4 times, the lgith will power on, and click 4 times can power off the light. When you wear it running in the night, you can turn on the light and other people will see you. PRODUCT KEY FEATURE Total 48 Hours Playing Time The workout headphones come with a 500mAh charge case, it can supply total 48 hours play times for earbuds. each earphone can play about 10 hours after 1 time charge. The bluetooth earbuds will give you excellent stereo sound environment, that the heave low bass from the amazing earbuds will act your ears to enjoy the great music. Thin body headphone This wireless bluetooth headphone with thin body, it is light and comfortable for wearing. This charge case with magnetic swith, easy to open and close it . The LED light shows the power volume of battery case, you can easy to know the battery case power. Auto Pairing and Auto Power On When you take off the earbuds from the battery case, it will automatically power on, and then two earbuds will automatically pairing each other.After two earbuds paired each other, then you can listen the music from both two earbuds at same time. IPX5 Waterproof This bluetooth headphones is IPX5 waterproof and sweatproof, that you will not worry about that the sweat will wet the earbuds. 28mm Super Large Speaker The heave low bass from the 28mm super larger speaker is to act your ears to enjoy the great music.The music output is HD stereo audio that will make high class listening enviroment, and the sound is very clear without any noise because of noise cancellation technology. Button Control Press the button 1 click to pause or play the music, 1 click button to answer or shut off the call. left headphone 2 clicks button to decrease volume, right headphone 2 clicks button to increase volume. Left headphone 3 clicks for last song, right headphone 3 clicks button for next song. 4 clicks button to turn on or off the ear hook light. Use It When Gyming Or Sporting This bluetooth headphones is IPX5 waterproof and sweatproof, that you will not worry about that the sweat will wet the earbuds. You can wear it when gyming or doing other sporting, and it will keep staying well on your ear. Use it When Cycling You can wear this wireless headset when you riding the bike, it will stay well in your ears and will not fall out easily. The bluetooth of headphone is version 5.2 , that can makes connecting stable and fast, even you riding very fast and the bluetooth connection will keep connecting very well. Night Running Safe Mode The earhook of bluetooth headphone with green light, that click the button 4 times, the lgith will power on, and click 4 times can power off the light. When you wear it running in the night, you can turn on the light and other people will see you. PRODUCT SPECIFICATIONS Product Name: Bluetooth Headphones Wireless Headphones Open Ear Bluetooth Headphones Noise Cancelling Headphones Earbuds Workout Headphones Wireless Earbuds Bluetooth Earbuds Bluetooth Version:Bluetooth V5.3 Communication distance: 20-30 feets. Talk time: 50 hours Play music: 50 hours Charging time: 1hours, DC5V 1A Volume Adjustment: Touch right earbuds 2 times to volume increase, touch left earbuds 2 times to decrease volume. WHAT IN THE BOX: 1 x Wireless headphones with battery case , 1 x USB cable