Specification Brand : TEAMWILL BulletPoint : Price For: Each Transducer Function: Alarm Tones: Continuous Supply Voltage Min: 3V Supply Voltage Max: 24V Operating Current Max: 10mA Sound Level SPL: 95dB Resonant Frequency: 3.5kHz External Diameter: 28mm RoHS Compliant: Yes BulletPoint1 : The sound pickup is high-quality 50mm Piezoelectric ceramic disc transducer,It is very large and can collect a wider range of sound in case you are sure where are the best parts of the sounds. BulletPoint2 : This is a pre-wired, pre-soldered piezo and jack harness which make it easy for you. All you have to do is to attach the piezo in or on your build, drill a hole and mount the jack. Then you're done!Fit for most st music instruments such as Guitar Mandolin Cigar box Guitar Violin Ukulele Banjo, etc. BulletPoint3 : Installation instruction:1 Take the plastic film down from the back of transducer to expose the adhesive, 2 Place the transducer through the sound hole to the lower part of the front body where the guitar produces the best tonal response,3 Drill a hole from inside the body, loosen the end-pin jack nut, insert it to the hole and tighten the nut The above procedures depend on different instruments. BulletPoint4 : Package included:12 x Disc piezo pickup Color : default title ExternallyAssignedProductIdentifier1 : 0720118875603 ExternallyAssignedProductIdentifier2 : 720118875603 IncludedComponents : Great Product ItemName : 12 Packs 50MM Guitar Pickup Piezo Transducer Prewired Amplifier With 6.35MM Output ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 13 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : piezo-transducers Manufacturer : TEAMWILL Material : copper ModelName : 54-27C4/DSP ModelNumber : PK-20A35EWQ NoiseLevel : 85 decibels NumberOfItems : 1 PackageLevel : unit PartNumber : AMP4PCS*3 PowerSourceType : Battery Powered ProductDescription : The sound pickup is high-quality 50mm Piezoelectric ceramic disc transducer It is very large and can collect a wider range of sound in case you are sure where are the best parts of the sounds. This is a pre-wired, pre-soldered piezo and jack harness which make it easy for you. All you have to do is to attach the piezo in or on your build, drill a hole and mount the jack. Then you're done! Fit for most st music instruments such as Guitar Mandolin Cigar box Guitar Violin Ukulele Banjo, etc. Installation instruction: 1 Take the plastic film down from the back of transducer to expose the adhesive 2 Place the transducer through the sound hole to the lower part of the front body where the guitar produces the best tonal response 3 Drill a hole from inside the body, loosen the end-pin jack nut, insert it to the hole and tighten the nut The above procedures depend on different instruments. Specification: color:black Material: metal + plastic Cable long : approx 42cm/16.5 inch Plug Dia: approx 6.35mm/0.25 inch Package included: 12 x Disc piezo pickup ProductSiteLaunchDate : 2023-11-30T11:59:55.679Z Size : Default Title SupplierDeclaredDgHzRegulation : unknown UnitCount : 1 UnspscCode : 60131500 Voltage : 20 volts