🎧 Fosi Audio Bluetooth Tube Amplifier Receiver with 5654 Vacuum Tubes: Enhanced Mini Stereo Audio Headphone Amp for Superior Sound Quality Review

Compatible with most devices: 50W RMS x2 power output(4 ohms, 20 Hz - 20 kHz, 0.04% THD), built-in speakers protection circuit, can use iPod, Phone, MP3 players, TV, Echo Dot, CD players, or Streaming Media players as input. Replaceable tube: Adopt 2 x 5654W and 2 x 6J4 tubes to get more clear with an emphasis on clarity, larger soundstage, and bass response is more noticeable, tubes can be replaced by 6K4, 6J1, 6AK5, 6ж1П, 6BC5, 403A/B, EF40, EF95 and so on, used to the DIY audio system. CSR64215 wireless Bluetooth core: Support aptX low latency, Streaming range up to 39ft(12m), With Bluetooth and AUX selector, no pop when Bluetooth connecting. Unique Integrated Headphone Amplifier: With headphone output for 16-64ohm headphones, listen to beautiful music alone, isolate the sound of the surrounding environment and immerse yourself in the world of music. The Tube AMP is easy to connect to your audio system with no software to install or settings to change, an 18-month warranty, please contact us if you have any problems.