JOYO JE-307 Guitar Pickup 5-Band Equalizer Folk Guitar EQ Acoustic guitarra Pickup Preamp Electric Digital Tuner (Black)

1. Bass: +/-12dB at 80Hz 2. Middle 1: +/-12dB at 500Hz 3. Middle 2: +/-12dB at 1KHz-2KHz 4. Treble: +/-12dB at 3KHz 5. Presto: +/-12dB at 10KHz 6. A4 Frequency: 440Hz 7. Tuning Range: 0A(27.5Hz)-8C(4186.01Hz) 8. Low Battery light 9. Weight: 72g 10. Dimensions: 57(L)X50(H)X85(W)mm 11. Power: 1 x 9V 6F22 Battery (NOT INCLUDED)