2.4GDual Mode Wireless Bluetooth Mouse Rechargeable Silent Ergonomic forLaptopPC Color:Black 3: Each product is unique

3: Each product is unique and made by hands

This product has an internal antenna

Frequency response range: 20Hz-20KHz

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you can switch to 3D mode to enjoy the surround sound with High Fidelity from a normal audio source

2.4GDual Mode Wireless Bluetooth Mouse Rechargeable Silent Ergonomic forLaptopPC Color:Black 3: Each product is unique2. 4GDual Mode Wireless Bluetooth Mouse Rechargeable Silent Ergonomic forLaptopPC Dual mode Wireless Computer Mouse with Bluetooth 5. 2 + Wireless 2. 4G Optical Silent Mouse with USB Receiver 3 Adjustable DPI for MacBook Laptop Notebook PC Tablet Feature: 1. Bluetooth 5. 2 + Wireless 2. 4G: It is dual mode designed and 2 channels enabled. The wireless mouse connects one device via Bluetooth and the other via 2. 4G USB receiver. You can freely switch.