Wireless earbuds, dual bluetooth headphones v4.2 true mini in-ear headsets stereo sports earphone earpiece sweatproof for iphones, samsung smartphones. – small size, super lightweight. Ensure a secure and comfortable fit model: i7s – color: black, white – battery: headphone 35mah / charging box 200mah – use time: music / call 1.5h – weight: headphones 4.1g / charging box 32g – size: headphones 4.7*1.8cm / charging box 6.7*5.4*2.8cm * parcel: 2*headphones(left and right), 1* ( charging box, charging, cable user manual how to charge earbuds -.While charging the red light is on. -.When fully charged the blue light will be lit for 2 minutes and then go out. -.Case charging the red light is on. When fully charged the red will go off. -.This charging case supports charging and discharging at the same time.