The Gigpro is a small outboard preamp with great sound quality and versatile EQ controls.
Features include:
- All-discrete class A circuitry for sweet, transparent sound
- Entirely passive EQ circuitry adds no distortion to maintain transparency 
- Adjustable input gain allows the best performance and lowest noise with a variety of pickups
- Lightweight, compact and belt-clip ready: Ideal for wireless situations
- Controls include treble and bass, phase inversion and a low cut trim control, adjustable from 27Hz to 200Hz
- Battery status LED 
- Super quiet -90dB Signal-to-Noise Ratio
- 300  hours of playtime on a single 9V battery
Specifications:
Size: 4.75" x 2.85" x 1.25"
Weight: 6.6 oz w/battery
Battery Type: Single 9V
Power Consumption: 1.6mA, 1.5mA w/Remote
Battery Life: > 300 Hours (alkaline)
Class: Pure Class A 
EQ: Passive
Treb: ± 6dB @ 7kHz
Bass: ± 6dB @ 80Hz
Low Cut: 12dB/oct.
  -Adjustable: 27Hz to 200 Hz
Gain (with flat EQ):  10dB to  33dB
Signal-to-noise: -90dB, 27Hz-20kH
Input Impedance: 10 Megohms 
Output Impedance: 800 Ohms