Master-level ergonomically optimized for all hand shapes, bringing comfort to a Approximately 16.8 million color lighting Captivating RGB lighting effects with dedicated buttons, allowing users to switch colors freely. Enhance game atmosphere and visual appeal Multifunctional integrated mouse, more powerful and reliable, recommended for office tasks, graphic design and similar applications Trackball - Omni-directional Operating Experience The trackball allows for precise cursor micro-movements, offering a more effortless experience than traditional dragging,The trackball system is crafted from rubber material. For daily maintenance, gently clean the trackball groove using a cloth Built-in Lithium Tri-cell Battery Enjoy continuous use with the rechargeable battery, saying goodbye to frequent battery depletion worries. Larger capacity means longer usage time, reducing the need for frequent replacements. Engineered with and featuring thermal protection for safe, eco-friendly recharging. Button Durability: ~3 million times Wheel Durability: ~1.2 million times Number of Buttons: 8 Tracking System: Optical Frequency: 2402.85MHZ-2480.85MHz DPI: 800-1200-1600-2000-2400-4800DPI 2.4 GHz Report Rate: 125 -500Hz Effective Distance: 10m Operating Voltage/Current: 3.7 V-=15 mA Bluetooth Report Rate: 90-133Hz Compatibility: With Receiver For 11 or later / 10/ 8, 7 OS 10.10 or later Chrome OS TM linux 2.6 Bluetooth low energy technology: For 11 or later / 10/ 8 OS 10.10 or later For Chrome OS ™M, Android ™ 5.0 or later Material: ABS colour: black Package Contents: 1 x Trackball Mouse(with built-in 730 mAh battery) 1 x 1.5M Data Cable 1 x Multilingual instructions Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.