Product parameters:Product Name: VXE Dragonfly R1 SeriesModel: R1 SE/R1/R1 Pro /R1 PRO MAXEquipped with chip: Shanghai Botong/Nordic 52840Weight: R1 SE/R1 (51g)/R1 PRO (48g)/R1 PROMAX (54g)Sensor: PAW3395/PAW3395SEConnection method: Wired/2.4G/BluetoothScope 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 mmCompatible Systems: Windows, macOS, Linux, Chrome OSPackaging Accessories:R1 SE and R1 Regular Edition: Wireless Receiver Charging/Data Transfer Cable User Manual Warranty CertificateVersion 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: NoneAcceleration: 50 GMovement speed, IPS: 400Sensor model: Pixart 3395 (26000 DPI650 IPS50G)Gross weight: 54gOperating Mode: OptoelectronicPower Type: BATTERYNumber of rolls: 1 pcHand Orientation: Both HandsPackage: YesResolution: 26000Interface Type: BluetoothType: Wireless 2,4 GHzName: VGNOrigin: Chiny Continentalmaterial quality: leather-like materialMouse Type: Symmetrical Hand ShapeColor: BlackNumber of devices connected simultaneously: 1 unitBacklight Effect: No LightConnection Method: Wireless 2.4G, Wired,4K wireless receiver requires additional purchase and is only available for R1 PRO and R1 PRO MAX models