With the Samsung 25W 10,000 mAh Battery Pack, you can power up at a moment's notice. Whether it's your phone, buds or both, you can quickly charge whenever you need with a fast and powerful battery pack.* *Products sold separately. Charging speeds vary depending on the number of devices. When charging two devices simultaneously, maximum charging speed is 15W per port. **25W Super Fast Charging requires Super Fast Charging-capable device; only available when connected to a single device; depends on battery level and other factors; use only Samsung-approved chargers and cables. To avoid injury or damage to your device, do not use incompatible, worn or damaged batteries, chargers or cables. ***A minimum of 20% of the Battery Pack contains post-consumer recycled content (UL ECVP 2809). For more information, see: www.ul.com/services/recyclability-environmental-claim-validation-ecv.