Mini BT Mushroom Speaker Wirelessly Portable Subwoofer with Mic & Suction Cup for Pads/Smartphones Built-in li-ion-battery, fine quality amplified sound. Cute and attractive mushroom appearance. Built-in microphone for hands-free calling. size and ultra portable. Widely compatible with most smartphones and pads. bottom sucker can be stuck to your cellphone or desk, free your hands to watch your cellphone. A wonderful gift or decoration to your family, friends or lovers. Note: 1.Due to different display screen and light effect, actual color of item might be slightly different from color showed on pictures. 2.Please allow a little measuring deviation due to manual measurement. Specifications: Package weight: 100g / 3.53ounces Frequency response: 100HZ-20KHZ Item weight: 60g / 2.12ounces Output : 3W supply: 3.7V/200mAh Material: plastics Item size: 55 * 55 * 55mm / 2.16 * 2.16 * 2.16in Effective distance: 10m Package size: 90 * 70 * 70mm / 3.54 * 2.75 * 2.75in Signal to noise ratio: ≥70db Package List: 1 * User Manual 1 * Mushroom Speaker 1 * USB Cable