What's in the box:

ammoon Mandolin Guitar Pickup Wood Piezo Contact Microphone Pickup 6.35mm Port for Guitar Ukulele Violin Banjo Mandolin Accessory (Standard)

Features:
It can be applied to folk, classical guitar, ukulele, violin, banjo, mandolin and so on.
Posted in different parts of the instrument have different pickup effects.
Directly bonded to the instrument panel via. double-sided adhesive, not to hurt your instrument.
It can be removed at any time, and then paste use.
Without power, easy to install, cheap, with class pickup effect.

Specifications:
Model: GMB627
Material: Wood and piezo
Color: As shown
Interface: Standard 6.35mm jack
Cable Length: 73cm / 28.7inch
Item Size: 73 * 3.8 * 1.53cm / 28.7 * 1.5 * 0.6inch
Item Weight: 32g / 1.1oz
Package Size: 20 * 9 * 2cm / 7.9 * 3.5 * 0.8inch
Package Weight: 35g / 1.2oz

Packing List:
1 * Pickup