VeeDee C26 Bluetooth FM Transmitter for Car, Wireless Bluetooth FM Car Kit Hands-Free Calling and 2 Ports USB Charger Top Quality In-Car Wireless Bluetooth professional-grade FM Transmitter This little gadget with Dual USB Ports Charger, LED digital display screen and Built-In Mic, give you safer, more flexible and convenient driving experience of hands-free calling, music enjoyment, quick charge. Specification: Bluetooth version: JL2.1 Bluetooth Protocol: AVRCP, HFP, A2DP Screen Display: blue LED digital display Frequency range: 87.5-108.0MHz Frequency stability : ¡À10ppml Product Input: 12-24V Charger output: 5V/3.4A Music Format: MP3, WMA Mic: ¡Ó4.0MM*1.5MM USB(Max capacity): 32GB FM Transmit Distance: about 5 m Product Weight: 34g Product DIMENSIONS: L78*Diameter 35mm Material: ABS Function: Built with a high-performance microphone, with Echo Cancellation and Noise Reduction (CVC) technology offers you a crystal clear calling and safer driving. Two music play mode(pair with the phone via specific Bluetooth or Insert USB Disk into the ¡°Right¡± USB Port) let you be absorbed in music playing when driving. Built in dual USB ports car charger (up to 3.4A total ) and smart charging IC, automatically detects your devices and charges all cellphone or iPad at optimal speed. Charge two devices simultaneously without damage to the battery. Super compact and portable design with blue LED digital screen display of FM frequency and car voltage, provides you portable driving travel. NOTE: Please NEVER use it in these conditions: Moist or underwater conditions. Near heater or high-temperature service. With direct and strong sunshine. Never dismantle it without due permission. Package contents: 1x Bluetooth FM Transmitter with Dual USB Charge Port 1x User Guide