Guitar effect Buffer. The Mooer Micro Buffer is a helpful tool in the musician's everyday business. Improve the signal quality with a simple tap when running longer cable lines. Up to 6 dB of boost can be added on demand. Toggle switches allow individually cutting low and high frequencies.Increased signal quality even faced with longest cabel routes. Up to 6 dB boost. Toggle switches for High-cut & Low-cut. True bypass. Metal case and footswitch. On/Off LED. Input: 6.3 mm jack, mono. Output: 6.3 mm jack, mono. Power: optional 9V DC power supply, 2.1 mm barrel plug, polarity (-) center, (+) ring. Current draw: 20 mA. Dimensions (W x D x H): 93,5 x 42 x 52 mm. Weight: 145 g