1. Condenser transducer in sealed enclosure for clear and uncolored sound 2. Rugged vibration pickup for instrument miking 3. Frequency response tailored to acoustic guitar, for banjo, for zither, and for bowed string instrument miking 4. Ultra light vibration pickup does not change the balance of the instrument 5. Figure 8 Pattern accurately captures audio signal from the left and right Professional three-pin mini XLR connector that fits the body-pack The is a vibration pickup that converts the vibrations of an instrument's soundboard into an electrical signal. An for acoustic guitar, for banjo, for zither, or for bowed string instrument and ensures absolutely accurate, coloration-free reproduction. The supplied adhesive compound for attaching the pickup leave wooden, plastic, and metal surfaces untainted. Colour:Black Material:Aluminum alloy + plastic Package Contents: 1 x GC411 Instrument Pickup(Due to different product batches, the appearance , which does not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.