FM radio and versatile music playback FM radio supports 87.5 MHz to 108.0 MHz for quick ondemand listening Six function keys: mode, prev, scan, next, rec, mic for convenient control Power amplifier output: 2 x 10 W for clear, roomfilling sound Power options: rechargeable lithium battery 7.4V and DC 9V input Flexible media and remote operation Supports TF card and USB U disk playback Poweroff memory function to resume last source and track when powered on Remote control works from a distance of 5–10 meters for convenient operation External audio input via LINE IN for connection to other audio devices quality decoding and recording Dual decoding for MP3, WMA, WAV, FLAC, and APE formats Supports both wired and wireless microphones Builtin recording function to capture microphone sound Digital tube display for clear, easytoread status Power, tone, and mic controls Charging voltage: DC 9V Builtin reverberation (reverb) effect for enhanced vocal performance Independent /low tone adjustment and microphone volume knob for precise control 2–3 practical use scenarios Home karaoke and family entertainment: sing along with MP3/WAV/FLAC/APE formats, use the mic with reverb, and adjust tone and mic level for a balanced vocal output; remote helps you control playback from across the room. Small gatherings or parties: play music from TF card or USB drive, connect an external music source via LINE IN, and use wired or wireless microphones to host activities or performances; remote control enables easy operation from a distance. Classroom, rehearsal, or small event setup: record performances with the builtin recorder, switch sources quickly with the six keys, and use the LINE IN and microphone inputs to accommodate different teaching or practice scenarios.