Features: brand new and high quality It can be removed at any for time and then pasted for use. It is directly attached to the dashboard. The plastic is durable and does not damage the piano. It is suitable for folk, classical guitar and ukulele, guitar, ukulele, erhu, guzheng, violin, mandolin, banjo, shamisen and other box-voicing instruments. No need for battery drive, compact appearance, easy to install, equipped with for 3M glue, just stick it, the sound pickup effect is first-rate. You can choose different installation positions to get your favorite tone according to personal preference. Using high-quality piezoelectric elements as the main body, pick up the vibration signal and convert it into an electrical signal for output. Specifications: Material:ABS Size:Approx.1.6x6.5x3cm/0.63x2.56x1.18inches Length:30cm/11.81inches Color:Black/Red Pickup connector: standard 6.35mm connector Scope of application: acoustic guitar, ukulele, violin, classical guitar, Zhongruan, pipa, guzheng, etc. Package Includes: 1x Microphone Pickup note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.