Specifications: 1.Model: AV252 2. Impedance: 4ohm / 8ohm 3. Frequency respond: 20 - 20000Hz 4. Sensitivity: Less than 12dB 5. Max output power: 5W x 2 Description: 1. AV252 is a car audio that subverts the tradition, and the design concept is the car dashboard, there are three instrument-shaped large circles on the panel, and with a high-fidelity waterproof internal magnetic speaker on each side as well as a large volume of the encoder in the middle, a circular display in the middle of the big circle, all of this make the machine and the car instrument matched well. There are not only two built-in speakers, but also two built-in closed speakers adopting sound field design on the back of the machine body, and there are two diaphragms in the rear of the speaker enhancing the bass deterrent, which contributes to the product with 2.1-channel sound quality effect; compared with the original car speakers sound quality and timbre, it is more soft, pure and beautiful with more shocking bass, avoiding the second speaker installation to the car. 2. Highlights: (1) Built-in Bluetooth 2.1 + EDR and microphone, hands-free call (2) Built-in 2 loudspeakers (3) Supports advanced audio distribution profile (4) Off time display function (5) Digital high-quality FM stereo radio (6) Preset 18 stations ( frequency: 87.5 - 108 MHz ) (7) Support USB / TF card reader ( TF card is not included ) (8) Support audio: MP3 / WMA, etc. (9) Support breakpoints and ID3 play (10) Rotary volume control (11) Multiple EQ scene selection: Jazz, rock, pop,classical, etc. (12) L / R RCA audio output jacks, can connect with subwoofer Package Contents: 1 x AV252B 12V Bluetooth Vehicle MP3 Audio Player 2 x Installation Accessories