When we say power, we mean it. Meet the most rugged Bluetooth speaker you'll ever get your hands on. Handy portable speaker, surge power is powered by Bluetooth 4.0, which brings you crystal clear, full-bass audio wherever you go - no background noise or static whatsoever. It's dustproof and shockproof making it the perfect companion for your next outdoor adventure. It's got 12 hours of playback time, 20 hours of talk time, and 800 hours of standby time - plus a whopping 33 feet operation range. Its built-in power bank can charge two devices at once, saving you the hassle of carrying extra chargers. And best of all, you're backed by our 100% satisfaction and money back guarantee if you have any concerns about this product. What's in the box surge power Bluetooth speaker AUX 3.5mm cable micro USB charging cable user manual features and specifications 10w power speaker: Powerful loud speaker size: 182.5 x 137 x 148.5mm, battery capacity: 10000mahUSB charging output: Max 5v, 2.4abluetooth version: 4.0supported profile: HSP, HFP, a2dp, AVRCP compatibility: Compatible with most Bluetooth-enabled devices, including but not limited to iPhone, iPad, iPod, Samsung galaxy note, android smart phone, Bluetooth-enabled TV, Bluetooth-enabled PC or tablet, etc. Hands-free phone call: Supported multi-point connection: Supports connection to two devices at the same time operates while charging: Supported play time: 12 hours charging time: 3 hours LED indicator: Shows charging and pairing voice prompt: English voice prompt AUX audio input: Supports wired audio connection scroll up now and click "add to cart" to make Proxelle's surge power Bluetooth speaker a part of your life .