Next-generation pedal tuner featuring the powerful new ULTRA BUFFER is even more compact and easy to use. The  Pitchblack X mini not only features a true bypass for outputting the sound exactly as it was input, but now includes a built-in ULTRA BUFFER. The majority of electric guitars use passive pickups with a high impedance output. When you are using a cable there is a loss of tone, usually high frequencies, after about 6 m (around 18 feet) and this problem gets worse the longer your cable. A buffer boosts the signal over long cables to avoid loss of tone, keeping it clean and clear - even when your pedal is off. The ULTRA BUFFER enhances the sound quality in bypass mode, so that you can still maintain audio quality even when using a long cable to connect to the tuner, or when inserting the tuner into a complex effects board. On the Pitchblack X Mini, you can switch between true bypass and the ULTRA BUFFER, according to your tastes and performance environment. Features Allows switching between true bypass and the newly-developed ULTRA BUFFER Compact housing - but packed with advanced functionality Meter LED also offers bright mode settings for high visibility Ultra-high tuning accuracy down to ±0.1 cents Four meter display modes Built-in “just-right tuning” display Specifications Scale: 12 note equal temperament Detection Range: E0 (20.60Hz)~C8(4,186Hz) Calibration Range: A4=436?445Hz(1Hz steps) Detection Accuracy: +/- 0.1 cent (display mode: Strobe) Input Impedance: 1 M-ohm (tuner on) Display Modes: Regular, Strobe, Half-strobe, Mirror Connectors: INPUT (mono 1/4” jack), BYPASS (mono 1/4” jack), DC 9V IN Power Supply: AC adaptor (9V) Power Consumption: Maximum 30 mA Dimensions (W x D x H): 45 x 93 x 43 mm (including protrusions) Weight: 124 g Included Items: Notices, Rubber feet, 9V battery x 1 Accessories: AC adaptor (9V)