Features:
US plug， AC 100-240V input.
DC 9V output for power supply.
Connector is inside positive(+) outside negative(-).
The cable is about 1.5m.
Great for guitar pedal， electric keyboard or other devices.

Specifications:
Input: 100-240V 50/60Hz
Output: 9V 250mA
Plug: US
Connector inner diameter:2.1mm
Connector outer diameter:5.5mm
Connector length: 11.0mm
Connector electrode: inside positive(+) outside negative(-)
Cable length: Approx. 1.5m / 5ft
Item size: 5 * 4 * 4cm / 2 * 1.6 * 1.6in
Item weight: 154g / 5.5oz
Package size: 10 * 7 * 4cm / 3.9 * 2.8 * 1.6in
Package weight: 156g / 5.5oz

Package list:
1 * Power Adapter