This multipurpose Bluetooth speaker, is uniquely designed to function as Flash light, Power bank, FM radio, call receiving, with 32G TF card slot. It adopt the world leading "passive resonance membrane technology of double magnetic 16 core alloy speaker, low frequency shock with surround super bass and stereo sound effect. Super big LED flash light specially designed for outdoor sport with 4000mAh battery providing 36 hrs. Long lasting lighting. It is compatible with all the mobile phones, tablet PC, notebook and any device with Bluetooth function. The main body of the speaker is warped by seamless silicone case which is water-resistant, anti-scratch, shock prove and more durable to use.