Dual-Port Bluetooth MP3 Adapter

Dimensions: 10 x 7 x 4.6 cm; weight: 56 g; housing material: ABS plastic. Operates on 12–24 V DC (compatible with cars and trucks), with wide input range of 9–26 V. Features dual USB ports: one outputs 5 V / 2.1 A, the other 5 V / 1 A — enabling simultaneous high-speed charging of two devices. Supports Bluetooth 5.0 with A2DP profile for stable, low-latency audio streaming; FM transmission frequency range 87.5–108.0 MHz; microphone pickup range 0.5–1 m. Plays MP3/WMA/WAV files from Bluetooth source, USB flash drive (up to 32 GB), or microSD card (up to 32 GB). Audio performance: frequency response 20 Hz–20 kHz, signal-to-noise ratio >60 dB, total harmonic distortion 60 dB, RF output 4 dBm, sensitivity −92 dB. Working temperature: 0–50 °C; standby current ≤25 mA; operating current ≤45 mA.