Wireless Bluetooth- Fm Transmitter For Car Mp3 Player, Modulator. Features: CVC Technology to Control Noise and Storm then to Create Full-duplex Sound Quality Support External TF Card, Can Play MP3/ WMA Format Music Files Music Play Modes: USB Flash Drive/TF Card/ Bluetooth Connection USB Ports for Both Playing Music and Quick Charging Hands-free Calling with Voice Reminder Start the Car, the Screen Will Display the Car Batter Voltage. Memory Function for Auto Bluetooth Connecting Once Paired Sound Quality-Using the Most Advanced Interference and Noise Cancellation Technology to Provide the Most Perfect Sound Quality. Specifications: Bluetooth Version: V4.1 + EDR Display: 1.4inch LCD Display FM Frequency: 87.5MHz - 108.0MHZ Product Input: 12-24V Charging Output: 5V/3.4A Sound Distortion: No Distortion Read U-disk & SD Card: 1G-32GB Hi-Fi FM Transmitter Cable Length :about 109cm Package Content: 1 X FM Transmitter 1 X USB Charging Port Cable 1 X Air Vent Holder 1 X User Manual . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.