SH 1110-UK is a complete pickup system to amplify your acoustic ukulele. It consists of a undersaddle pickup (50 mm x 2,3 mm x 1,8 mm) which installs invisibly under the saddle and fits all standard slots and guarantees, with correct installation, a balanced volume of your instrument's strings.The screwable, high-quality stereo-endpin connection (SH 012) has a 2.5 mm input jack for the pickup cable (length: 200 mm) and a 6.3 mm output jack for standard instrument cables. The SH 1110-UK does not require a battery.If you want to combine the SH 1110-UK with an external preamp Shadow recommends the SH ACP-1. Shadow cable preamps will allow you to make your passive pickup active without a modification to your instrument.