Take an extra 50% off by entering coupon promo code 7A1OR4N7 at checkout. Fast shipping is completely free with an Amazon Prime membership or on orders over $35. - Multi-device pairing: built-in Bluetooth 5.0, Bluetooth 3.0, and 2.4GHz USB wireless connection modes allow you to smoothly switch control between up to 3 separate devices (laptop, PC, iPad, or Mac) with a single click. - Extended rechargeable battery: packed with a durable built-in 800mAh lithium battery that charges quickly via an included cable. Features an automated intelligent sleep mode that preserves battery longevity when inactive. - Silent click buttons: engineered with an ultra-quiet internal dampening mechanism that mutes over 90% of clicking sounds, making it ideal for quiet offices, cafes, libraries, or home workspace environments. - 6 adjustable DPI level adjustments: easily configure tracking sensitivities across 4800, 2400, 1600, 1200, 1000, or 800 DPI profiles to achieve fluid tracking precision across gaming or productivity workflows. - Comfortable ergonomic contour: features a streamlined asymmetrical profile designed with soft palm contour mappings to reduce muscle tension and hand fatigue during long desktop sessions.