- Model: Cherub WST-550VM- Designed to tune violin and mandolin- Powered by 1 x CR2032 battery (included)- Features a swivel clip for attaching on musical instruments<br />- Model: Cherub WST-550VM- Designed to tune violin and mandolin- Powered by 1 x CR2032 battery (included)- Features a swivel clip for attaching on musical instruments                                                                                                                                Dimensions: 2.36 in x 1.18 in x 0.67 in<br />Weight: 1.66 oz