Multifunctional, 2-in-1, work as tuner as well as power supply. Scientific and rigorous tuning program to make tuning more accurate and stable. With eight isolated outputs, can power eight 9V pedals simultaneously - 6 for 100mA, and 2 for 500mA. Compact and portable design, easy to carry along. True bypass design, minimizes tone loss and control of your pedal. Rugged steel casing, and sturdy. Comes with an adapter and 8 connecting cables. Comes with 4 protective caps to protect petal. Adapter input: AC 100-240V 50/60Hz Adapter output: 18V Product size: 11.4 * 6.4 * 4.8cm / 4.5 * 2.5 * 1.9in Product weight: 240g / 8.4oz Note: Please use the 18V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly. Plug Type :US Plug,it applies to Canada, India, Japan, Mexico, Thailand, the , the Philippines and so on. Color: White Housing: Aluminum alloy Package Contents: 1 * Tuner and Power 8 * Connecting Cables 1 * Converting Cable 1 * Adapter 1 * User Manual(English and Spanish) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.