SpecificationWearing type : In-Ear Bluetooth version: V5Connectivity : Wireless Application : music,callingColor: black,whiteEarphone Battery:30mahMusic Time: 4h Standby time: 120h Charging time: 1hCase battery:400mahBluetooth: Yes Transmission distance: 15mPackage Includes:2 x Bluetooth Headphones(left and right earphones),1 x Charging box 1 x Micro USB Charging Cable1 x User Manual 1: Listen to music at 100% volume 5H2: 3 sound effects, 3 styles3: The charging case is compact and portable:4: Play games without delay