What's in the box:

12-hole Acoustic Guitar Sound Hole Pickup Magnetic Transducer with Tone Volume Controller Audio Cable

Features:
Acoustic guitar pickup with 12-hole magnetic transducer, can capture vibrations quickly.
Designed with a tone and volume controller for more accurate pickup.
Easy to install, put pickup into sound hole and adjust padded metal piece.
No need to drill hole and no scratch to your guitar.
Suitable for 38"-41" guitars with steel strings.
Comes with an audio cable (3.5mm to 6.35mm plug) for connecting to guitar speaker.

Specifications:
Audio Cable Length: about 3m/ 9.8ft
Item Weight: 126g / 4.4oz
Package Size: 14 * 10 * 4cm / 5.5 * 3.9 * 1.6in
Package Weight: 195g / 6.9oz

Package List:
1 * Pickup with Controller
1 * Audio Cable