Hoco's aSeries 3 bluetooth TWS earphones delivers crispy and tenacious audio in a sleek and stylish form factor that supports popup window when case is opened plus a larger battery that allows for 7 hours of playtime Features: Bluetooth 5.3, chip: Jerry AC6983 Battery capacity: 350mAh for charging compartment, 30mAh for earphone Talk/music time: 7 hours, 200 hours standby Supports master-slave switching, Siri, modify pairing name, touch operation Included with a charging cable Size: 53.8x44.3x21.5mm Net weight: 43g Barcode: 6931474779946