Specifications: With antenna, support FM radio receiving. Support micro SD or TF card and having digital display. Compact and mini, easy to carry. Support connect the phone, computer or tablet by AUX cable. Type: Mini Speaker Material: Aluminum Alloy Interface: 3.5mm Audio, USB2.0 TF/Micro SD Card Extension: Max. 32GB (Not Included) Driver Unit: 45mm Power Output: 3W Frequency: 150Hz - 18KHz S/N: 80dB FM Radio Frequency: 87.5MHz - 108MHz Charging Time: about 2 Hours Lasting Time: about 1 Hour Battery Type: Polymer Lithium Battery (Included) Battery Voltage: 600mAh Features: Portable, Mini, with Antenna, Music Playing, Digital Display Size: 5cm x 4cm x 5cm/1.97" x 1.57" x 1.97" (Approx.) Notes: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Mini Speaker 1 x USB Cable 1 x Audio Cable Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.