Portable HIFI Bluetooth Speaker LED Cube Stereo Mini Speaker Super Subwoofer Supports FM Radio TF Cards. Stable triangle shape structure, exquisite and attactive metal grid. A2DP stereo Bluetooth transmission 3W strong output power with outstanding sound quality. Suitable for both indoor and outdoor exercise. Aux in function support all digital audio device with 3.5mm jack, such as For /, MP3, Computer, Notebook, ... 500mA high capacity built-in rechargeable battery, lasts for 5 hours at least. Passed the simulation environment test, you can use it in the rain without any proble. Built-in microphone, support calls handsfree function. Support playing MP3 songs stored in the TF card. Support external 3.5mm audio input terminals of all. Support FM automatic station search. Supports rechargeable. Design: Multifunctional,Portable ,LED colorfull light Compatible with: MP3,TF Micro-SD Card Supports: Bluetooth,Hands-free Calls,Loudspeaker,Microphone,Volume Control Functions: AUX Function,Noise Cancelling,Resonance,Songs Track,Stereo Connection: Wireless,Line in Interface: 3.5mm Audio,Micro-USB,Microphone,Power Charge Port,TF Card Slot Audio Source: Bluetooth Enabled Devices,Electronic Products with 3.5mm Plug,Electronic Products with USB port,TF Micro-SD Card Bluetooth version: V4.0 TF Card Extension: 16G to the Max.(Not Included) Transmission Distance: W/O obstacles 10m Speaker Impedance: 4 ohm Power Output: 3W Freq: 50Hz-20kHz Power Source: Battery Charging Voltage: 5V Playing time: up to 5 hours Battery Capacity: 500mAh Battery Type: 18650 Lithium ion battery Product size (L x W x H): 66 x 66 x 66mm Color: Black Material: ABS Package Contents: 1 * Bluetooth Speaker 1 * charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.