Duo Slim is the first iPhone Battery Case with built in Hi-Fi Speaker

We’ve seen many iPhone battery cases come with awesome features, but the Duo Slim is the first to come with built in Hi-Fi Speakers to provide great sound with Ultra-Thin Design for iPhone 7 users & backwards compatible with iPhone 6.

PERI is a new startup responsible for developing The Duo Slim iPhone case, Giving music lovers a new way to experience music through hi-fi Bluetooth connection, introduced the product in ces 201, and announced partnership with VOXX to distribute the Duo Slim.

Duo Slim Features

Play digital audio directly from the iPhone to the Duo hi-fidelity speakers via a docked iPhone lightning connection.
Use the Duo as a detachable Speaker – connect any Bluetooth enabled device and play wireless audio to the Duo via Bluetooth BLE.
Enhance phone calls with microphone/speakerphone capability via Bluetooth.
Full-range 3-watt speaker system tuned for rich bass.
High-resolution DAC (Digital-to-Analog Converter) for improved hi-fidelity audio.
Provide 100% extra battery life to your iPhone or enjoy 10+ hours of audio playback with the Duo’s integrated 2500mAh battery.
Simultaneously charge the Duo and attached iPhone via USB Charging in half the time of other leading battery cases.

The built in hi-fi speaker can boom sound to a big room with High-resolution DAC (Digital-to-Analog Converter) that can stream songs directly from your iPhone or, you can connect any other device via Bluetooth connection.

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Duo Slim comes with battery 2500mAh provide extra power to enjoy 10+ hours of audio playback, it also can be charged simultaneously with iPhone via USB charging in half time of other iPhone cases rivals.

Peri introduced the first version with support for WI-FI connection but announced later to go with Bluetooth to provide a slim unique design that can be the best fit for iphone lovers.