The JBL Go 4 Ultra-Portable Bluetooth Speaker is a bold colorful device that fits in the palm of your hand. Despite its small size it delivers clear loud JBL Pro Sound with rich punchy bass. With up to 7 hours of playtime on a single charge you won't have to worry about battery life. The IP67 waterproof and dustproof rating makes it suitable for poolside parties or seaside picnics. You can even pair two Go 4 speakers for stereo sound or connect multiple JBL Auracast-enabled speakers for even bigger sound. Features Ultra-portable JBL Pro Sound with punchier bass Up to 7 hours of playtime plus 2 hours with Playtime Boost Waterproof and dustproof Multi-speaker connection by Auracast™ Made in part with recycled materials Vibrant color options JBL Portable app Content + Care Go 4 Portable Waterproof Bluetooth Speaker USB Type-C Cable Quick Start Guide Size Product Dimensions (W x H x D): 3.7 x 3.0 x 1.7" Product Weight: 0.42 lbs Music play time: Up to 7 hours JBL Go 4 Portable Waterproof Bluetooth Speaker in Blue at Urban Outfitters