Ahuja WP-220M is a compact and rugged amplifier that delivers 20W (max.) output power. It features a built-in digital MP3 player and recorder, and comes with a handheld wireless microphone model WM-22. Other features include provision for connecting one wired microphone and an AUX source, tone control for adjusting the frequency response, digital echo, 8 Ohm external speaker output, and the ability to operate on AC mains, 12V external car battery, and 12V 1.2Ah internal rechargeable lead acid battery. The amplifier also has a facility for recharging a 12V 1.2Ah battery and 8.