Description: Stylish LED Bluetooth speaker pluggable card, high-end and durable. Bluetooth wireless transmission, support for hands-free calling. Support TF card auto play function. Support audio output, can connect to computer, tablet, mobile phone, MP3 MP4 and other audio interfaces to achieve wireless music playback. Small body drive, large capacity, high volume, high pitch are powerful. Specification: Bluetooth distance: <10m Speaker specifications: 40mm Response frequency: 280Hz-16kHz Input method: AUX TF card Bluetooth Signal to noise ratio: > 95dB Charging voltage: USBV500-1000mA Distortion: <1% Bluetooth version: v4.2 Power supply mode: lithium battery 600mA Product features: Bluetooth playback Hands-free calling, AUX audio input, TF card playback Scope of application: Support smart phones such as for Apple, Samsung, compatible with digital devices such as for iPad and Notebook Desktop Computers (no Bluetooth function devices, need to be used with Bluetooth adapters) Package Includes: 1Piece Wireless Bluetooth Speaker 1Piece USB Cable Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you.