Q5 2-in-1 Bluetooth-compatible 5.3 Audio Adapter with Audio Receiver/Transmitter,Car MP3 Player with Colorful Ambient Light Versatile Bluetooth-compatible 5.3 Adapter: The Q5 combines Bluetooth-compatible transmission (TX) and reception (RX) functionality,along with TF card MP3 playback,making it a multifunctional audio companion High-Performance Chip: Equipped with a JL chip,it delivers reliable and efficient Bluetooth-compatible performance for your audio needs Impressive Wireless Range: Enjoy a Bluetooth-compatible reception range of over 10 meters and FM transmission up to 2 meters,ensuring flexible audio connectivity Wide Compatibility: Suitable for use with computers,televisions,projectors (transmission mode),as well as speakers,headphones,and vehicles (reception mode) Long-Lasting Battery Life: With a 300mAh built-in battery and protective circuitry,it offers up to 6 hours of music playback and can be fully charged in about 2 hours Specifications: Chip: JL Bluetooth-compatible Version: 5.3V Bluetooth-compatible Transmit Power: 7dBm Output Impedance: 32Ω Frequency Response: 20-20KHz Signal-to-Noise Ratio: 90dB Microphone Sensitivity: -42dB Bluetooth-compatible Reception Effective Range: ≥10 meters FM Transmission Effective Range: ≥2 meters FM Transmission Frequency: 87.5-108.0MHz TF Card Playback: Supports up to 32GB (with automatic power-off memory function,card not included) Input: 5V/2.1A Battery: 300mAh Charging Time: about 2 hours Music Time: about 6 hours Package included: 1 x Bluetooth-compatible Audio Adapter 1 x English User Manual 1 x Charging Cable 1 x 3.5mm Audio Head Other items not included