Supersonic Supersonic Hands-Free FM Transmitter

FM Transmitter for iPhone 5 and Other Audio Device with 3.5mm Earphone Jack Hands Free Talk Function, Offers You More Safety When Driving LCD Displays Frequency with Backlight Frequency Range: 87.5-108 MHZ Built-in Rechargeable Lithium Battery Foldable 3.5mm Jack is Compatible with All Phone Cases Frequency Response: 20HZ-20KHZ Input: 5V Working Current: 20-30 mA Battery Capacity: 120 mA Charging Time: Approx. 5 Hours Working Time: Approx. 5 Hours Transmitting Distance: 3-5M Item Dimensions: 4.00-in x 2.00-in x 1.00-in Item Weight: 0.80-lbs