Brand new, unused. The product has not been taken out. ELECOM Mouse Wireless M size 5 buttons (with back/forward buttons) BlueLED Premium Grip Gun Metallic M-XGM10DBBK/EC - Designed from the shape of the hand, achieving even better "grip comfort." This 2.4GHz wireless 5-button mouse "EX-G" features BlueLED, allowing comfortable operation anywhere. - This 5-button mouse "EX-G" achieves a previously unseen "grip comfort" through its design based on the shape of the hand. - It's a medium size that fits comfortably in your hand. - Focusing on the thumb and ring finger, which are used most frequently during mouse operation, it's designed to fit the four points of the proximal phalanx, thenar eminence, middle phalanx, and metacarpal bones. - The side grips are made of leather-like material to prevent slipping and enhance the quality as a tool. Thank you for viewing. Power source...Battery operated