TECKNET Bluetooth Mouse connects wirelessly to your laptop, desktop, or tablet without a receiver. TruWave precision ensures smooth tracking on almost any surface. Powered by 2 AA batteries (not included), it lasts up to 24 months thanks to energy-saving features like an on/off switch and smart sleep mode. Two extra side buttons let you quickly switch apps or navigate web pages. Backed by a 36-month warranty. Note: Not for left-hand use. Side buttons are not compatible with macOS.