Boss GK-5 Guitar Synth Pickup; next-generation divided pickup for guitars with steel strings and BOSS guitar synthesizer products using the Serial GK interface, improved performance over the previous 13-pin interface; stable digital signal transmission; light and streamlined connector housing; flat, slimline pickup fits on most standard electric guitars; includes an attachment plate for TOM-Style bridges; the connector housing mounts securely to the instrument’s strap button with the included bracket; Pickup Dimensions (W x D x H): 103 x 8 x 9 mm (4,03” x 0,32” x 0,36”), Connector Housing Dimensions (W x D x H): 38 x 73 x 16 mm (1,5” x 2,88” x 0,64”); Note: a 1/4” TRS-Jack cable is required for operation (Boss BGK-15 Serial GK Cable, Thomann Art. No.: 571693 or BGK-30 Serial GK Cable