Dimensions/weight Earbuds:1.54"; H x 1.02"; W x 1.06"; D (0.3 oz each) Charging case:3.5"; L x 2"; W x 1.25"; D USB cable:12"; Materials Earbuds: Plastic/gold plating/polymer coating Eartips: Silicone Case: Hard plastic Battery Battery life: Up to 6 hours Earbud battery charge time: 2 hours Charging case battery charge time: 3 hours Quick-charge time: 15 minutes for 2 hours Battery charge method: USB-C or Qi certified wireless charging pad Battery type (earbud): Lithium-ion (metal-enclosed coin cell) Battery type (case): Lithium-ion (pouch cell) Automatic on/off feature to preserve battery life Microphones 4 total microphones Bluetooth Bluetooth range: Up to 30 ft (9.144 m) Bluetooth version: 5.1 Codec: SBC and AAC