DimensionsSignature M650
• Height: 4.26 in (108.2 mm)
• Width: 2.4 in (61 mm)
• Depth: 1.52 in (38.8 mm)
• Weight: 3.58 oz (101.4 g)Signature M650 L
• Height: 4.67 in (118.7 mm)
• Width: 2.61 in (66.2 mm)
• Depth: 1.65 in (42 mm)
• Weight: 4.07 oz (115.4 g)Signature M650 L Left
• Height: 4.67 in (118.7 mm)
• Width: 2.61 in (66.2 mm)
• Depth: 1.65 in (42 mm)
• Weight: 4.07 oz (115.4 g)Technical SpecificationsSensor Technology
• Sensor Technology: Logitech Advanced Optical Tracking
• Nominal value: 400 dpi
• Max value: Up to 4000Buttons
• Number of Buttons: 5 (Left/Right-click, Back/Forward, Scroll-wheel with middle click)Battery
• Battery type: 1 x AA battery (included)
• Battery life with Logi Bolt USB Receiver: up to 24- months 1It may vary based on use and computing conditions.
• Battery life with Bluetooth: up to 20- months 2It may vary based on use and computing conditions.Connection TypeConnection Type: Logi Bolt USB Receiver
• Bluetooth Low Energy Technology
• Wireless range: 10 m (33-ft) wireless range 3Wireless range may vary depending on operating environment and computer set upOptional software: Supported by Logitech Options+ on macOS 10.15 or later and Windows 10, 11 or laterSustainability
• Off-white plastics: 26% post-consumer recycled material
• Rose plastics: 26% post-consumer recycled material
• Graphite plastics: 64% post-consumer recycled material

DimensionsSignature M650
• Height: 4.26 in (108.2 mm)
• Width: 2.4 in (61 mm)
• Depth: 1.52 in (38.8 mm)
• Weight: 3.58 oz (101.4 g)Signature M650 L
• Height: 4.67 in (118.7 mm)
• Width: 2.61 in (66.2 mm)
• Depth: 1.65 in (42 mm)
• Weight: 4.07 oz (115.4 g)Signature M650 L Left
• Height: 4.67 in (118.7 mm)
• Width: 2.61 in (66.2 mm)
• Depth: 1.65 in (42 mm)
• Weight: 4.07 oz (115.4 g)Technical SpecificationsSensor Technology
• Sensor Technology: Logitech Advanced Optical Tracking
• Nominal value: 400 dpi
• Max value: Up to 4000Buttons
• Number of Buttons: 5 (Left/Right-click, Back/Forward, Scroll-wheel with middle click)Battery
• Battery type: 1 x AA battery (included)
• Battery life with Logi Bolt USB Receiver: up to 24- months 1It may vary based on use and computing conditions.
• Battery life with Bluetooth: up to 20- months 2It may vary based on use and computing conditions.Connection TypeConnection Type: Logi Bolt USB Receiver
• Bluetooth Low Energy Technology
• Wireless range: 10 m (33-ft) wireless range 3Wireless range may vary depending on operating environment and computer set upOptional software: Supported by Logitech Options+ on macOS 10.15 or later and Windows 10, 11 or laterSustainability
• Off-white plastics: 26% post-consumer recycled material
• Rose plastics: 26% post-consumer recycled material
• Graphite plastics: 64% post-consumer recycled material