What's in the box:

Clip-on 6.5mm Sound Pickup with 3.5mm Male to 6.5mm Female Jack 3.5mm Female to 3.5mm Female Adapter (Brown)

The sound pickup is suitable for bass, guitar, cello ect.

Features:
A universal sound pickup for musical instruments, such as for bass, guitar, cello ect.
Clip-on design, easy to fix it on instrument stably.
Just plug it into amp or other recording equipment, very easy and convenient.
With different jacks to meet your different needs.
Compact and light-weight, easy to carry.

Specifications:
Item Weight: Approx.26g / 0.9oz
Cable Length: Approx.90cm / 35.4in
Jack Size: 6.5mm
Package Weight: Approx.38g / 1.3oz
Package Size: Approx.10 * 10 * 2.5cm / 3.9 * 3.9 * 1.0in

Package List:
1 * Pickup
1 * Adapter(3.5mm Male to 6.5mm Female)
1 * Adapter(3.5mm Female to 3.5mm Female)