[Product Information]

EVA+ABS
POWERFUL / LOUD / STRONG SMART BACKPACK: The TRAKK SHELL waterproof backpack and laptop case contains a 20W output (5WX2) subwoofer with max-bass technology. The SHELL can literally be heard through storms， wind， construction， and other loud settings.
LED BACKPACK WITH POWER BANK & BATTERY LIFE: The SHELL includes an internal USB output power bank to charge all your USB enabled devices: smartphones， tablets， notebooks etc. The power bank is powered by a 5200 mAh battery and can complete charge our phone twice. The SHELL can provide up to 12 hours of audio on single charge.
ADVANCED CONNECTIVITY & COMPATIBILITY OF A WATERPROOF HIKING BACKPACK: The SHELL backpack with speaker can be paired with your Bluetooth device up to 65 feet away. High Speed Bluetooth 4.0 Connectivity allows for auto pairing and high quality sound. 20W HI-FI Built in Bluetooth Speakers are compatible with Smartphones， Tablets， MP3 Players， and other audio devices.
RUGGED DESIGN AND DURABLE MATERIAL: The SHELL waterproof backpack contains a hard-shell material to provide protection for all your gadgets and belongings no matter the adventure. Multiple compartments in the backpack provide enough storage space for your accessories， clothing， food and more. Rugged design allows for complete durability. EVA Manufactured materials allows for complete shockproof protection.
RISK FREE: All TRAKK Products include a 1 Year Warranty and full satisfaction guarantee.