Product parameters: Product Name: VXE Dragonfly R1 Series Model: R1 SE/R1/R1 Pro /R1 PRO MAX Equipped with chip: Shanghai Botong/Nordic 52840 Weight: R1 SE/R1 (51g)/R1 PRO (48g)/R1 PROMAX (54g) Sensor: PAW3395/PAW3395SE Connection method: Wired/2.4G/Bluetooth Scope of continuous operation: 35 hours (R1SE)/40 hours (R1) 75 hours (R1PRO) 150 hours (R1 PROMAX) Size: 120,6 mm x 64,0 mm x 37,8 mm Compatible Systems: Windows, macOS, Linux, Chrome OS Packaging Accessories: R1 SE and R1 Regular Edition: Wireless Receiver Charging/Data Transfer Cable User Manual Warranty Certificate Version R1 PRO: Wireless Receiver Charging/Data Transfer Cable Receiver Extension Cable Small PTFE Patch Help Manual Warranty Card One anti-slip sticker (black with black, white with white) Affected chemical: None Acceleration: 50 G Movement speed, IPS: 400 Sensor model: Pixart 3395 (26000 DPI650 IPS50G) Gross weight: 54g Operating Mode: Optoelectronic Power Type: BATTERY Number of rolls: 1 pc Hand Orientation: Both Hands Package: Yes Resolution: 26000 Interface Type: Bluetooth Type: Wireless 2,4 GHz Brand Name: VGN Origin: Chiny Continental material quality: leather-like material Mouse Type: Symmetrical Hand Shape Color: Black Number of devices connected simultaneously: 1 unit Backlight Effect: No Light Connection Method: Wireless 2.4G, Wired, 4K wireless receiver requires additional purchase and is only available for R1 PRO and R1 PRO MAX models