B-Band U1.0 Ukulele Pickup Set, preamp socket and battery in one housing for assembly at instrument side, piezo pickup for mounting under the saddle (model B-band 24U) power supply: 2 pcs CR2032 button cell (not included), dimensions pickup 2.4 mm wide, 56mm length, total length of cable 230mm, dimensions preamp cover 56mm x 39mm for a hole 50mm x 34mm, depth ca.26mm, HZZLess circuit (special B-BAND circuit of a low-noise signal and a high output power supplies).