Features:
3-band equalizer, rotate Low/Middle/High to adjust volume frequency. With a phase and tuner function. Tone and volume control. Wide frequency range from 20 HZ to 20 kHZ. LED for effect on/off and battery check, replace battery when battery lights. Powered by a 9V Alkaline battery (not included).
Specifications:
Input impedance: 10MΩ
Frequency Response: 20Hz-20kHz
Package size: 15.4 * 8.5 * 4.2cm / 6.1 * 3.3 * 1.6in
Package weight: 160g / 5.7oz