Features:
12-hole magnetic transducer captures vibrations quickly and converts mechanical vibrations to an electrical signal.
Designed with a volume and tone controller, push the button to choose tone and volume as you like.
Easy to install, put pickup into sound hole and adjust padded metal piece to fix it stably without scratch and need of drilling hole.
Passive design, without need for external power.
Comes with an audio cable (3.5mm-6.5mm), approx. 3 meters in length.
Design for 38"/39"/40"/41"acoustic guitar.

Specifications:
Audio cable length: 300cm / 9.8ft
Pickup size: Approx.13 * 3 * 1cm / 5.1 * 1.2 * 0.4in
Volume controller size: 6 * 3.5 * 2cm / 2.4 * 1.4 * 0.8in
Package size: 13.5 * 10 * 4cm / 5.3 * 3.9 * 1.6in
Package weight: 178g / 6.3oz

Package List:
1 * Pickup (with volume&tone controller)
1 * Cable