Please kindly noted that this item is sold by Axifactorify from Joybuy marketplace.Description The item is a portable and practical mini digital speaker music player, which is and stylish in design, and features compact size and good sound quality to let you indulge in your favorite music anytime and anywhere. Features - Color: Silver. - Material: Aluminum alloy. - Size: Approx. 50 x 48 x 52mm. - Adopts anti-magnetic aluminum diaphragm mini speaker with clear sound quality, to let you indulge in your favorite music. - Support to play MP3 music from your Micro SD/TF or U-disk, plug and play. - 3.5mm audio input: the speaker can also be connected with your 3.5mm-jack audio devices, such as iPhone, iPod, tablet PC, MP3, MP4, etc., to let you enjoy wonderful music. - FM Radio: With built-in radio frequency module and telescopic antenna, it can be used to listen to FM radio. (Support auto search). - FM radio frequency: 87.5~108MHz. - LED display panel to display music playing time, and FM radio channel. - Multi-color LED flashing light at the base of the speaker, very cool. - Function buttons: On/Off, Menu, Previous song, Next song, Play/Pause, Volume control. - Powered by built-in rechargeable lithium battery for durable to use. - Portable design, easy to operate and convenient to carry. Specifications - Battery type: built-in 600mAh rechargeable lithium-ion battery. - Input voltage: USB DC 5V. - Playing time: about 2-5 hours after full charge. (The actual playing time depends on the music volume size). - Music format: support MP3 format. - Output power: RMS 3Wx2 THD=10%. - Frequency response: 150-18000Hz (±3dB). - Signal and noise ratio: more than or equal to 85dB. - Main interfaces: 1 * Micro SD /TF slot, 1 * USB 2.0 port, 1 * mini USB power port, 1 * 3.5mm audio input, 1 * 3.5mm audio output.