Party-Pack Audio Blasting Neon Zipper Fanny Pack with Built-In Stereo Speakers , Amplifier and Compartment for Parties , Raves & Music Festivals - Works With Apple iPhone 6s , Sony Xperia Z5 and More Audio-blasting fanny pack waist bag is perfect for any device with a 3.5mm headphone jack. Works with Apple iPhone 6s , Sony Xperia Z5 and More Powerful and portable sound with built-in speakers and amplifier 4 pockets for extra accessories storage; Perfect for beach days, raves, festivals, parties and other on-the-go activities Adjustable waist strap and heavy-duty buckle so you can "wear your sound" Powered via USB, 3.5mm audio output cable and 2ft 8in separation cable