Headphone Accessories -B2 Bluetooth FM Transmitter Highlights Generic Brand B2 Bluetooth FM Transmitter Description: Support Bluetooth hands-free calling, built-in microphone, convenient and secure answering machine. Noise processing during CVC call, wind noise suppression, full duplex call technology. Directly play on mobile phone with high quality after connecting Bluetooth Music. Automatically reconnect after power on, automatically enter pairing state. Support TF card expansion to play MP3/WAV format music. Comes with car charger, 5V-1000m output, can charge handheld terminal. Support TF card (32GB, 16GB, high speed 6 or above) Bluetooth. Specification: Bluetooth Version: V2.1+EDR Frequency: 20h-20khz Sensitivity: 42dB+3db360 Voltage: 5V+-0.5 Working Current: 45mA Standby Current: 25mA Frequency: 2.402-2.480ghz Effective Distance: 5 meters Sensitivity : -92dbm RF output: 4dbm FM FM: 87.5MHZ-108.0MHZ Transmit power: 87dbuv/107dbuv Effective distance: 2 meters Package includes: Bluetooth car FM transmitter 1 piece manual 1 piece Note: Please allow deviation of 0.5-1 inch due to manual measurement (1cm=0.39inch) Due to the light and monitor difference, the colors of the actual item might be slightly different from those shown in the pictures. Your satisfaction is our greatest concern. Thank you