Features: High speed output :36W double quick charge, high speed output, can charge 3 devices at the same time, intelligent identification and matching current does not hurt the battery, continuous joy. Five-way key design:Exclusive five-way key design, flexible operation, novel way, let you have more experience. Call effect:Super bluetooth call effect, super large microphone,360 degree surround radio. Ambient light: The ambient light moves with music, the light color is soft and melodic, on the way home at night, start BASS and BASS,360" surround sound, so that your journey is not lonely. Lossless transmission:New 5.0 Bluetooth chip, faster response, more stable low-power connection, upgraded intelligent chip, automatic power off when charging. Power-off memory play: Start the automatic connection. Memory channel, track power restart after continue to play. Specifications: Material:ABS Color:Black Size(about):44*37.1*88.6mm/1.7*1.5*3.5inch(L*W*H) Current :5V (FM transmitter) Voltage :12-24 (V) Transmission frequency :87.5 (MHz) Frequency response :108 (Hz) Distortion :95 (%) Effective range :5 (m) Left and right channel isolation :85 (dB) Package Included: 1pc x Car Adapter Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.