Charger Type:
Built-in rechargeable lithium-ion battery MagSafe wireless charging up to 15W15 Qi wireless charging up to 7.5W15
WHAT’S IN THE BOX:
1x Pair of OnePlus Bullets Wireless Z2, 3x Silicone eartips (S, M, L), 1x USB charging cable 1x User guide, 1x Safety and Warranty card
Battery Capacity:
Earbud battery capacity: 40 mAh (typical capacity), Charging case battery capacity: 500 mAh (typical capacity), Type: Lithium-ion polymer lithium battery