Q7 Portable Digital Display Bluetooth 5.3 MP3 Player 2-in-1 Receiver/Transmitter Car Audio Adapter •Versatile Functionality: The Q7 offers Bluetooth transmission (TX),Bluetooth reception (RX),and TF card playback for ultimate audio versatility •Digital Display: Features a clear digital display screen for convenient operation and status monitoring •Advanced Bluetooth Technology: Powered by Bluetooth version 5.3V,ensuring reliable and high-performance wireless connectivity •Wide Compatibility: Ideal for use with computers,televisions,projectors (in transmission mode),as well as speakers,headphones,and vehicles (in reception mode) •Built-in Battery: Equipped with a 300mAh built-in battery with protective circuitry,providing up to 6 hours of music playback on a single charge •Specifications: •Chip: JL •Bluetooth Transmit Power: 7dBm •Output Impedance: 32Ω •Frequency Response: 20-20KHz •Signal-to-Noise Ratio: 90dB •Microphone Sensitivity: -42dB •Bluetooth Reception Effective Range: ≥10 meters •FM Transmission Effective Range: ≥2 meters •FM Transmission Frequency: 87.5-108.0MHz •TF Card Playback: Supports a max of 32GB (with automatic power-off memory function,card not included) •Input: 5V/2.1A •Battery: 300mAh •Charging Time: about 2 hours •Music Playback Duration: about 6 hours Package included: •1 x Bluetooth Audio Adapter •1 x English User Manual •1 x Charging Cable •1 x 3.5mm Audio Head •Other items not included