Specification BatteriesIncluded : 1 BatteriesRequired : 1 BatteryInstallationDeviceType : installed_in_equipment Brand : ELECOM BulletPoint1 : STEEL ROLLER BEARING MOUNTED TYPE - Roller Type Bearing Provides the Ultimate Feelings and Smoothness. The bearing designed by Japanese manufactrer provides friction-free ball oparation. BulletPoint2 : INTERCHANGEABLE BEARINGS - Replaced with ELECOM bearing parts that sold separately BulletPoint3 : ERGONOMIC DESIGN - Supports your hand in a natural angled position 28 degree for all day comfort. BulletPoint4 : 36mm SILVER BALL SIZE - Easy to move from one end to the other even on large screens. BulletPoint5 : Dimesion - Width 3.8 inch x Length 5.0 inch x Height 2.0 inch, Weight : 5.2oz BulletPoint6 : *This product does not include replacement Ruby Ball bearings. BulletPoint7 : A detachable wrist rest delivers soft cushioning to support the hand and wrist in ergonomic comfort for pain-free productivity during extended periods of activity on the computer BulletPoint8 : Mac and PC compatible ButtonQuantity : 5 Color : Black CompatibleDevices : Personal Computer CompatibleDevices1 : Personal Computer CompatibleDevices2 : Tablet ConnectivityTechnology : USB ConnectivityTechnology1 : Bluetooth ConnectivityTechnology2 : USB CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier : 4549550281362 ExternallyAssignedProductIdentifier1 : 085896709916 ExternallyAssignedProductIdentifier2 : 0085896709916 ExternallyAssignedProductIdentifier3 : 0085896721963 ExternallyAssignedProductIdentifier4 : 00085896721963 HandOrientation : Right HardwarePlatform : PC HardwarePlatform1 : Laptop HardwarePlatform2 : PC Hazmat1 : LITHIUM ION BATTERIES CONTAINED IN EQUIPMENT Hazmat10 : DE_SmallLithiumIonBatteryInEquipment Hazmat11 : EG_SmallLithiumIonBatteryInEquipment Hazmat12 : ES_SmallLithiumIonBatteryInEquipment Hazmat13 : FR_SmallLithiumIonBatteryInEquipment Hazmat14 : GB_SmallLithiumIonBatteryInEquipment Hazmat15 : IE_SmallLithiumIonBatteryInEquipment Hazmat16 : IN_SmallLithiumIonBatteryInEquipment Hazmat17 : IT_SmallLithiumIonBatteryInEquipment Hazmat18 : JP_SmallLithiumIonBatteryInEquipment Hazmat19 : MX_SmallLithiumIonBatteryInEquipment Hazmat2 : UN3481 Hazmat20 : NL_SmallLithiumIonBatteryInEquipment Hazmat21 : PL_SmallLithiumIonBatteryInEquipment Hazmat22 : SA_SmallLithiumIonBatteryInEquipment Hazmat23 : SE_SmallLithiumIonBatteryInEquipment Hazmat24 : SG_SmallLithiumIonBatteryInEquipment Hazmat25 : TR_SmallLithiumIonBatteryInEquipment Hazmat26 : US_SmallLithiumIonBatteryInEquipment Hazmat27 : ZA_SmallLithiumIonBatteryInEquipment Hazmat28 : 9 Hazmat3 : II Hazmat4 : AE_SmallLithiumIonBatteryInEquipment Hazmat5 : AU_SmallLithiumIonBatteryInEquipment Hazmat6 : BE_SmallLithiumIonBatteryInEquipment Hazmat7 : BR_SmallLithiumIonBatteryInEquipment Hazmat8 : CA_SmallLithiumIonBatteryInEquipment Hazmat9 : CN_SmallLithiumIonBatteryInEquipment IncludedComponents : orbit wireless trackball, usb receiver, aa battery IncludedComponents1 : Pro Fit® Ergo TB550 Trackball IncludedComponents2 : USB-A Receiver, USB-C (Male) to USB-A (Male) Charging Cable IncludedComponents3 : Quick Start Guide, Compliance Sheet IncludedComponents4 : Warranty Card, Welcome Card ItemName : ELECOM Ergonomic Comfort Design Trackball IST Wireless 2.4GHz Connect, Super-Smooth Tracking with Roller Ball Bearing, 36mm Ball, Thumb Control, Compatible for Windows, PC, and Mac Black (M-IT11DRBK) ItemPackageDimensions_Height : 21.209 centimeters ItemPackageDimensions_Length : 7.1882 centimeters ItemPackageDimensions_Width : 13.0048 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : computer-trackballs Manufacturer : ELECOM Material : Plastic ModelName : M-IT11DRBK ModelNumber : M-IT11DRBK MouseMaximumSensitivity : 500 dots_per_inch MovementDetectionTechnology : Trackball NonLithiumBatteryPackaging : batteries_contained_in_equipment NumberOfItems : 1 NumberOfLithiumIonCells : 1 OperatingSystem : Windows 10 OperatingSystem1 : Windows 7 OperatingSystem2 : Windows 8.1 OperatingSystem3 : Windows 10 OperatingSystem4 : Mac OS X 10.7 Lion PackageLevel : unit PartNumber : M-IT11DRBK Pattern : Mouse PowerSourceType : Battery Powered ProductDescription : ■ Ergonomics shape that can be operated in an easy posture and an overwhelmingly smooth operability, a thumb fingering type trackball IST. ■ Adopts an ergonomics design that can be used in a natural hand without holding it. Regardless of the size and grip of the hand, it is a shape that fits into the hand. ■ An angle that does not burden the wrist, it is comfortable even in long hours of work. ■ Bearings are made of high performance bearing made by Japanese manufacture. Because the resistance due to friction is reduced, a smooth pitching like floating in the air has been realized. ■ The support unit can be easily removed, and can be replaced with artificial rubies as well as bearings. ■ The replacement bearing unit (M-BS10) and the artificial ruby unit (M-RS10) are sold separately. ■ Adopts a 36mm diameter large ball that fits the thumb. The pointer can be moved extensively and delicately by one operation. ■ The replacement ball (M-B10SV) is sold separately. ■ Equipped with 5 buttons including forward and back buttons that are convenient when operating web browsers and folders. ■ The function assignment of the button can be changed using ELECOM Mouse Assistant that can be downloaded for free. ■ The receiver can be stored in the main unit, hard to lose and is convenient to carry. ■ There is a power switch on the upper surface of the main unit. You can turn on/off the power supply smoothly without turning over the body. ■ Connector shape: USB-A plug ■ Compatible models: WindowsOS, MacOS, ChromeOS equipped with USB ports ■ Compatible OS, Windows 11/10, MacOS Ventura 13, ChromeOS ■ Sensor decomposition ability: 500dpi number: 5 ■ Battery life: up to about 25 months ■ External dimensions: width 3.8 in x depth 5.0 in x height about 2.0 in, Weight: about 5.2oz ■ Contents: trackball x 1 unit for test batteries x 1, removal tool x 1, 1 receiver x 1