Further, for a longer time

With enough power to fully charge 4-6 smartphones, you can stay connected for days without tying down. In addition, the carbon fiber texture provides a more secure grip, while the rounded shape is ergonomic, making it even more suitable for taking with you.
Never run on empty again

The GS28 has a built-in battery indicator with a digitized LED display. It doesn't get any simpler than a clear percentage of remaining battery charge. With this detailed indication, you'll always know when to charge your power bank, so you'll never have to worry about running empty again.
Two outputs, twice as many options

Multitasking? The GS28 is equipped with 2 USB Type-A ports, so you can charge up to 2 devices at the same time. It's the perfect companion for those who balance multiple devices on the go or when traveling with a friend.
Two inputs, greater convenience

The GS28 is equipped with a Micro-USB input, but that's the case with most power banks. What sets it apart is the Type C input. Dual input options mean more convenience. Plus, it's the perfect future-proof accessory to sync with the growing trend of Type-C ports on devices.
Safe and maximum charging with SP's core technologies

smartSENSE: intuitive and universally compatible charging technology that maximizes charging speed and automatic pairing with almost any device.
Safe and maximum charging with SP's core technologies

smartFOCUS: an advanced calibration technology that stabilizes the voltage current during the charging process to maintain maximum charging performance.
Safe and maximum charging with SP's core technologies