Material: Aluminium alloy
Input: 1/4" monaural jack (impedance: 10M Ohms)
Output: 1/4" monaural jack (impedance: 150 Ohms)
Power requirements: AC adapter 9V DC (center minus plug)
Current draw: 15mA
Item size: 9 * 3.5 * 3.2 cm / 3.5 * 1.4 * 1.3in
Item weight: 145g / 5.1oz