Specifications: The digital stereo FM tuner can automatic/Semi-automatic exact search radio station, you can hear news, music, travel information. It supports remote control, you can control the unit by remote control conveniently. It can be connected to phone with built-in bluetooth-compatible function. The MP3 player supports external Plug AUX audio input, such as GPS navigation, MP3, MP5, etc. Item Name: Car MP3 Player Model: RK-523 Material: Electronic Components, Metal, Plastic Power Supply Voltage: DC 12V - 30V Speaker Impedance: 4 ohm Maximum Power: 25W Volume control: +/-8 dB (Bass 100HZ Treble 10KHZ) Tuning Range: 87.5 - 108MHz IF Frequency: 10.7MHz Applicable Sensitivity: 15dB Signal to Noise Ratio: 50dB Stereo Separation: 30 Features: Simple Operation, Fine Workmanship, Multifunctional Size: 18.8cm x 7.6cm x 5.8cm/7.4" x 2.99" x 2.28" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x MP3 Player 1 Set of Power Cable 1 x User Manual 1 x Remote Control 2 x Key