• IPX4 sweat proof • Bluetooth Version：V5.0 • Wireless working range: 10M • Earbud Battery: 35mAh*2 • Charging case battery: 300mAh • Play time: 4H • Talk time: 4H • Standby time: 150hrs • Battery display indicator • Input voltage / current: DC 5V/1A • Charging case dimension: 78*33.5*31 mm • Earbud dimensions: 41*18*26mm*2 • Accessories: 1pc Charging Cable; 1pc Manual Book