4 bands plus volume control Supplied with a battery box, Low battery indicator Connecting wire with 2.5mm plug includedSpecifications: Presence Control: ±12dB at 8KHz Bass Control: ±12dB at 600Hz Middle Control: ±12dB at 600Hz Treble Control: ±12dB at 2.2KHz Frequency Response: 20Hz - 20KHz Power: 9V alkaline battery Size: 15cm x 9.5cm x 4cm Weight: 6.7ozPackage Contents: 1x Pre-Amp plus pickup 1x Connecting wire with 2.5mm plug 1x 9 Volt battery