What's in the box:

AROMA ATR-3 Twister Analog Flanger Electric Guitar Effect Pedal Mini Single Effect with True Bypass (dark grey)

Features:
Full metal shell, durable and exquisite.
3 controlling knobs and 1 switch are accurate and high sensitive.
Color knob: Adjust the flanger feedback.
Range knob: Adjust the sweep range in normal mode and manually adjust the filter matrix in freeze mode.
Speed knob: Adjust the flanger sweep speed.
Mode switch: Switch between freeze and normal mode.
Output jack: 1/4" mono audio jack for signal output.
Input jack: 1/4" mono audio jack for connecting guitar.
True bypass footswitch and lever designed to prevent stamping on operation knobs.

Specifications:
Model: AROMA ATR-3
Effect: Flanger
Material: Aluminium Alloy
Input Impedance: 1M Ohms
Output Impedance: 510 Ohms
Current Draw: 10 mA
Power supply: AC Adapter 9V DC (not included)
Item Size: 9 * 3.8 * 4.8cm / 3.5 * 1.5 * 1.8in
Item Weight: 149g / 5.2oz
Package Size: 12 * 7 * 6.5cm / 4.7 * 2.7 * 2.5in
Package Weight: 247g / 8.7oz

Package List:
1 * Guitar Effect Pedal
2 * Adhesive Tape
1 * User Manual (English & Chinese)
1 * Hardcover Box