There is no shortage of iPhone cases on the market, but once in a while there are special cases that push the envelope of cool and innovative. This is exactly what the new PERI Duo smartphone case brings to the table.

The Duo is both a powerful hi-definition speaker and an extra battery rolled into one. The case can even act as a standalone Bluetooth or Wi-Fi speaker that offers a safe streaming through the accompanying PERI Audio app. There is also the option of connecting the Duo cases together via peer-to-peer Wi-Fi connectivity to multicast music through multiple devices.

Call clarity with the device is at an all-time high thanks to a microphone embedded in the case to offer supremely crisp sound during conference calls.

Duo’s battery is a 2500mah unit that allows users an added boost of 130 to 160 percent of battery power. This offers 12 to 17 hours of regular battery life, or 4 to 6 hours of continuous playback depending on how high the volume is set.

The PERI Duo comes in four color combinations (white/gold, red/black, black/silver, and a murdered out black/black). The Duo is currently offered for the iPhone 5/5 S/6/6 Plus models. PERI has created a new Duo-Slim case for the iPhone 7 models, which is currently part of a Kickstarter.