Features 10+ hours of battery life -- the charging case charges earbuds up to 4X times! features supreme sound, built-in microphone, touch control, LED light indicator pre-charged and ready to use specs: driver diameter: 10mm; earbuds capacity: 30mAh; power bank capacity: 250mAh; charging time: up to 1.5 hours; charging interface: type C USB; talk/music time: up to 2 hours (dependent on volume level); total play time: 12 hours; standby time: up to 120 hours; input power: 5V ~ 1A; bluetooth range: up to 33 feet. Works with Siri and Google Assistant