Superior Sound and Louder Volume High quality 10W dual speaker drivers features delivers a clarity stereo sound with a unique enhanced bass. Unique internal structure design stream your music at a louder volume, it is perfect when you like the sound filling whole room. Bluetooth 4.0 Technology Latest bluetooth 4.0 technology ensure maximize device compatibility and pair range, and enhance pairing speed in 2 seconds.(It shows up in the Bluetooth connections list as "SOGGIV.") Smartphone Charging feature With Micro USD smartphone charging port is available for your phone charging (included USB Charging cable) Ultra Portable The top of speaker is with a adjustable premium leather soft and wide strap, can be hung at anywhere, such as kitchen, living room, garden or bike etc. Incredible Long Battery Life Built-in 4000mah rechargeable lithium battery guarantees up to 8 hours playtime with a single charge. Specification: - Models: NS-L38 - Bluetooth Version: V4.0 - Power Output: 5W X 2 - Frequency Response: 40Hz-22KHz - SNR 80DB - Input Source: Bluetooth, TF, AUX, USB Power Bank - Transmission Distance: 8-10m/33 feet - Bulti-in Lithium battery: 4000mAh Package Includes 1 x A Bluetooth Speaker 1 x USB Charging cable and Aux cable 1 x Manual