Feature: Three Connection Modes BT 3.0 + BT 5.0 + 2.4G wireless connection modes deliver fast transmission mode of data, and simply switches by mode button. Silent Design The button is designed without noise and makes click silent without disturbing others. High Quality Material Made of high quality material, to ensure its durability and longer service life, with 5000000 times click. Adjustable DPI Resolution Engineered with max 16,000 DPI, and professional IC positioning accuracy, the mouse offers deadly precision and greatly optimizes power control. Ergonomic Design Adopts the ergonomic design to fit your palm perfectly, and allows the wrist, palm, and hand back to move comfortably. Specification: Brand:HXSJ Model: T36 Material: ABS+Metal Color: Blue,Pink,Silver (Optional) Rated Voltage/Current: 3.7V/10mA Key Life: 5 million times Wireless Distance: 10m / 393.7inches Work: Photoelectric Battery Capacity: 500mAh(Built in invisible chargeable) Cable Length: 80cm / 31.5inches