Silent mouse M350 Bluetooth dual -mold wireless office mouse 2.4G Bluetooth dual -mode Laptop High Precision battery Mouse Number of keys: 3 (keys) Interface: USB Wireless transmission frequency: 2.4GHz Does ergonomics support: support Adjustable resolution: 3rd gear and below Operating distance: 10(m) Specifications: Warm shape and comfortable hand feeling Fashion, light and lovely Interpret energy in silence. Fashion appearance can show personality, but also exquisite and light. Jingshan Jingmei's familiar key feel interprets energy with quiet Multi-link, Bluetooth and 2.4G receiver easy link Easy to adapt to a variety of scenes, coffee table, bed can provide comfortable experience Installing the battery is convenient and quick to use. Package Included: 1 * Mouse, 1 * Receiver Notes: The battery needs to be purchased by the customer. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!