Features:
Sound hole installation, no need drill hole, easy to install. The preamplifier is suitable for mounting on guitars with sound hole diameter during 95~110mm.
Cork pad clamp design, no damage to paint of instrument.
It is a pickup that can be operated on your (download the free APP: Double+).
It has various DSP effects, including compress, reverberation, chorus and delay.
It supports active recording, output, audio, really a magical preamp.
With transmission mode, thus you can connect the through the receiver.
Comes with a receiver for wireless output, you can connect guitar to without cable.
Receiver with 1/4" audio , it can be connected to AMP or audio controller.
Support 2 different sets of transmissions at the same . DOUBLE G0 LE for connect for APP, and it you want to input some or accompaniment via device, connect it to the DOUBLE G0 .
With record and preserve function, just connect your device with a suitable cable to the 3.5mm active recording output jack(4 channels).
Both of preamp and receiver are powered by built-in polymer . is rechargeable, large capacity, long and has stable performance.
Equipped with a pad, which is washable and reusable, convenient to use anywhere.

Specifications:
Material: ABS+
APP: Double+
: 2000mAh
Item Size: 103 * 68 * 50mm / 4.06 * 2.68 * 1.97in
Item Weight: 159g / 5.63oz
Package Weight: 534g / 18.83oz
Package Size: 17.5 * 15.2 * 5.5cm / 6.89 * 5.98 * 2.17in

Package List: I8946
1 * Pickup
1 * Receiver
1 * Pad
1 * Tail Nail Leather Cover
1 * Output Tail Nail
1 * Vibrating Horn
1 * Screwdriver
2 * Cable
2 * Clip
2 * Gasket
1 * Manual (English)

Note:
This product is a coil and microphone combination pickup, which is suitable for all steel string guitars, but not for all nylon string guitars.