Description: Built-in MIC speaker, supporting hands-free call,unique Magnet Mount with detached clip suitable for different position. Magnetic suction installation, easy disassembly, vehicle / home use, with a hanging rope, can be used outdoors. DSP Technology to reach Noise reduction and echos cancellation. Pairing two Wireless-enabled devices simultaneously. Support MP3 / WMA playback from TF Card directly. Bluetooth and microphone allow you to answer callings, listen to music and media sounds from devices with Bluetooth function. Once you pair your device, it will automatically connect next time you get into your car. It can insert SD card. You can download songs to your USB or SD card. It can make you enjoy the clear stereo sound in the car with your family, friends,etc. You can use it on car sun visor, indoor and outdoor. Size Chart: Material: ABS Type: Bluetooth car hands-free Applicable mobile phone model: Bluetooth feature phone Installation type: sun visor Output method: Bluetooth Input voltage: 12-24 (V) Line length: 100 (cm) Headphone power: 5 (w) Working humidity: 70 Power: 5 (w) Microphone sensitivity: 99.9% Frequency response: 20Hz-20Khz Speaker resistance: 4 (Ω) Speaker power: 3 (w) Noise: 0.1% Bluetooth transmission distance: less than 10M Bluetooth microphone effective distance: 0.5-2M Color classification: silver, orange Product detailed size: 5.15x2.04x0.82inch/13.1x5.2x2.1cm Package Includes: 1x Wireless In-car Speakerphone 1x USB Cable 1x Manual 1x Lanyard