TECKNET 2-in-1 Bluetooth Mouse (BT 5.0/3.0+2.4Ghz), 6-Level 4000 DPI-Black | BT 5.0/3.0 & 2.4G wireless mouse with 4000 DPI, silent clicks, ergonomic design, and USB receiver for laptop and PC

【Multi-Mode Connectivity】Stop unplugging and re-pairing. This wireless mouse keeps two devices connected at once (BT5.0/3.0/2.4GHz) — just press a button on the computer mouse to switch between your laptop/tablet/MacBook/PC. As a Bluetooth mouse, it also offers a 2.4GHz USB receiver that stores inside. No Wi-Fi needed. 【2 in 1 Connection Options】No need to choose between Bluetooth and USB. This pc mouse connects via Bluetooth (Windows/macOS/Android) or 2.4GHz receiver — just store the adapter inside the mouse. No Wi-Fi required. 【Dual-Device Control】No more plugging and re-pairing. This wireless mouse controls two devices at once — one via USB-A, one via Bluetooth. Switch between laptop and tablet instantly. For MacBooks (no USB-A port), just use Bluetooth mode. 【Customizable DPI】No more sluggish cursor. 6 adjustable levels (800/1200/1600/2400/3200/4000). Tru-Wave tracking works on most surfaces. Plug-and-play with Nano receiver storage (stored in the back of the wireless mouse for laptop) 【Ergonomic Build】Comfort for long hours. This Ergonomic mouse features a contoured ergonomic design, 10 million clicks durability, and compact size for travel. Note: not ideal for large hands. 【Smart Features】Save battery and browse faster. This wireless mouse auto-sleeps for 18 months of battery life (2 AA required). Back/Forward buttons let you quickly move between documents or websites — works on Windows/Android, not on Mac. 【Usage Reminders】Audible clicks(not silent). Sleep mode activates after 10min (double-click to wake). Windows 7/XP note: Manual driver install required for USB adapter. Contact the seller for damaged/missing parts.