Vomelon U4 Bluetooth Speaker Waterproof Portable Wireless Outdoor/Shower Speaker Vibration Enhanced Bass Resonator for Computer, Laptop, PCs, Tablets, iPhone/iPad/iPod, Samsung The super Bluetooth speaker V2.1+EDR Standard A2DP: This Bluetooth speaker is an incredibly powerful speaker with Bluetooth V2.1+EDR Technology that offers you instantaneous connection (3 seconds) and longer Bluetooth connectivity range up to 10 meters (33 feet) without barrier. Interfaces allow the music to be played either through Bluetooth or AUX Compact wireless Bluetooth speaker offers loud pure stereo sound: Powerful 81mm diameter speakers and Enhanced Bass Resonator play a full-range, abundant stereo audio and loud sound with the ultra small size portable lanyard audio power amplifier Built-in Rechargeable Battery for up to 4.5-7 hours of playtime. Microphone design for hands-free speaker phone calling. Designed to be comfortable to carry with hand strap, which suitable for travel & hiking, extreme light and easy to fit in your backpack The classic simplicity but fashion tactile sensation portable wireless speaker will offer you the enjoyment of the fantasy design. Besides, the compact and sleek premium ABS black cover reflex some shine/lights in bright environment, which will not only drive you lose yourself in the brilliant crystal clear and incredible sound, but also do good to your eyes protection Easy broad connectivity to computer, laptop, PCs, tablets, iPhone/iPad/iPod, Samsung, and other smart phones via wireless Bluetooth or 3.5mm Audio Cable