When a speaker this small sounds this good, you’ll never leave it behind. The Bose® SoundLink® Micro Bluetooth® speaker delivers unmatched sound for a speaker this size. Its rugged design and durable strap let you take it everywhere you go. It’s waterproof from the inside out, so even if it falls in the pool, just pull it out and keep on playing. Crisp, balanced sound & unmatched bass performance for its size. Plays loud & clear outdoors - for beach days or camping trips. Waterproof from the inside out - meets IPX7 standards. Enjoy up to 6 hours of play time from a rechargeable, lithium-ion battery. Pair two speakers together for Stereo or Party Mode playback. Multi-connect to two devices and swap who controls the music. Hands-free voice control with Amazon Echo Dot. Wireless Bluetooth® pairing with voice prompts. Take calls and access your phone’s Siri or your Google Assistant™ right from the speaker. Easy charging via Micro-B USB port. Dimensions: 1. 4" x 3. 9" x 3. 9". Safety Data Sheet . Tiny. Until you turn it on.