S-288 Mini Hi‑Fi Class D Amplifier — 4.0CH, 40W RMS x4 (Max 600W), Bluetooth 5.0, USB/SD, FM, Mic, RCA/AUX — Power Adapter Included

Compact 4.0CH Update (2023) — The S-288 is a redesigned mini audio amplifier released in 2023 that packs full-featured controls into a small chassis. A combined treble/bass button and a unified power/volume control (rotate the volume knob clockwise to power on) keep the layout simple and elegant. Size: 7.1 x 4.1 x 1.7inch — easy to carry and suitable for both indoor and outdoor setups.4- Speaker Support & Power — This 4.0 channel unit drives four passive speakers (40W, 4-8Ω). It delivers 40W x4 rated power with a peak output of 150W x4 (Max 600W). High-fidelity design and a robust audio processing chip offer lossless decoding with very low distortion (distortion rate ≤0.5%) and improved anti-interference thanks to shielding power inductance.HiFi Sound Tuning — Dedicated treble and bass controls let you sculpt tone from deep bass to crisp highs. The S-288’s low-distortion circuitry and precise EQ allow detailed sound adjustment for music or movies.Inputs & Wireless — Multiple inputs include Bluetooth 5.0, RCA, AUX, USB and SD. The built-in Bluetooth 5.0 chip enables quick wireless pairing with phones, tablets, MP3 players and TVs (recommended Bluetooth range within 5m / 16.4ft). The RCA/AUX ports accept audio from PCs, TVs and other external sources.Karaoke & Radio — A microphone input jack enables home karaoke sessions. The built-in FM tuner can automatically scan and store local stations, supporting more than 30 saved stations. MP3 playback includes an EQ Balance feature: press the EQ key to cycle through six preset equalization effects.Construction & Accessories — Small footprint, solid performance: the S-288 is ideal as a compact home amplifier or a portable power amp for outdoor gatherings. Power adapter is included. If you encounter any issues while using the unit, customer support is available for assistance.