The SAT50 is a chromatic tuner ideal for tuning instruments, with high precision of ±1 cent for adjusting pitch. It can switch between AUTO and MANUAL modes and is compatible with various instruments. Size: 105 x 61 x 18mm Weight: 80g Convenient to carry and easy to use when playing instruments. I bought it for ensemble use, but I've been using my friend's, so it's been stored at home unused. I can't find the box, so I've marked it as "Like New". - Brand: SEIKO - Model Name: SAT50 - Type: Chromatic Tuner - Functions: AUTO / MANUAL - Range: E4-B4 (329.63-493.88Hz) - Accuracy: ±1 cent - Size: 105 x 61 x 18mm - Weight: 80g - Instruction Manual: Included