Feature:. 1.Retro Knob Design: The Bluetooth speaker is retro appearance, fashion and cool. And the knob is more convenient to control.. 2.360° Surround Sound: Super stereo surround, not only for home 150㎡ space, more suitable for outdoor area playback. Exclusive Bass technology and a patented spiral bass port boost low-end frequencies to make the beats hit even harder.. 3.Long Lasting Battery Life: Built-in rechargeable 3500mAh high-capacity Li-ion battery provides non-stop music playing up to 5 hours on maximum volume. Recharge in just 3 hours with the included USB cable.. 4.Flashing & Glowing LED Lights: Multicolored LED lighting effects add a whole new level of fun to your music, bringing an amazing party atmosphere.. 5.Digital Display & Remote Control: Coming with a small remote controller, you can easily control the volume and sound source.. 6.With a Hook on the Speaker: It will be easy to carry when hiking, walking, running, etc. And you can install the sport speaker on your bike with the stand, it is convenient to operate.. 7.As Phone Holder: The top design can be used as a mobile phone holder; release your hands with nice watching angle when watching TV series.. 8.Connected to External Microphone: This wireless speaker can be connected to external microphone, giving you much more convenience.. 9.FM Radio: Wireless bluetooth speaker FM radio reception-high-quality digital with automatic channel search and storage of up to 60 channels, can search available stations in your area.. 10.Compact, Lightweight and Portable: From kids to adults, audiophiles of all ages can appreciate the exciting immersive effects of this PA system. Enjoy your favorite music, wherever you go - beach, gym, outdoor party or your home garden.. Specification:. Type: Wireless Bluetooth Speaker. Bluetooth Version: 4.0. Input Impedance: 10KΩ. Bass Unit Impedance: 4Ω. Input: DC 5V. Power: 20W. Charging Time: About 3H. Playing Time: About 5-7H (depends on playing volume). Battery Capacity: 3500mAh. Frequency Response: 80Hz-20KHz. Control: Volume/BT/Remote Control/USB/TF. Size: 120*155*190mm. Package Included:. 1 * Speaker. 1 * Audio Cable. 1 * Charging Cable. 1 * Remote Controller. 1 * User Manual