Bluetooth 4.1 Speaker, Portable Wireless Speakers With 12 Hrs Play Time, Enhanced Bass Stereo Sound, Built-in Mic LOUD BLUETOOTH SPEAKER WITH SUBWOOFER: Enjoy your music in 10W full-bodied bass stereo realized through dual full-range drivers and inner magnetic horns to create a rich deep and clarity surround sound. Bulit-in silicone diaphragms make the bass effect more prominent and you'll hear incomparable bass performance not found in other normal 10 watts speakers. FASHION ALUMINUM EXTERIOR WIRELESS SPEAKER: High quality Aluminium alloy offers durability and elegance as a great artwork at home. Perfect size can be suitable for both active outdoor and indoor use and you can easily pick up and put in your bag. WIRELESS BLUETOOTH 4.1 SPEAKER: Using the latest Bluetooth technology to ensure lossless CD-quality audio streaming and maximize device compatibility and pairing speed. And non-Bluetooth devices using included 3.5mm audio cable connected to the AUX-IN jack. HANDSFREE CALLING: Equipped with microphone enables you can talk to the speaker directly when a call coming. Let you be free from annoyance of reconnect devices again and again at any time. So much better for travel and hiking, superlight and easy to fit in your backpack, baggage. EASY CONNECTIING AND EASY LISTENING : Wide buttons for bluetooth connection, volume control and track selection are easy to identify and press. Built-in rechargeable Li-Ion 2200mAh battery guarantees up to 12 hours of playtime, even up to 24 hours at normal volume!