Digital display clip-on tuner with pitch adjustment function. Suitable for guitar, mandolin, violin, etc. - Model: LCT7 - Type: Clip-on tuner - Display: Digital display - Function: Pitch adjustment function - Operation buttons: MODE, FLAT, PITCH buttons Thank you for viewing. I'm selling this tuner because I have a spare one at home. The screen turns blue when the tuning is correct, making it easy to see. Batteries are not included, so please prepare them yourself.