Hawke Sport Optics Digi-Scope Smartphone Adapter Black. Specifications for Hawke Sport Optics Digi-Scope Smartphone Adapter: Manufacturer: Hawke Sport Optics Color: Black Fabric/Material: ABS Plastic Eyepiece Lens Diameter: 33 - 60 mm Width: 1.73 in Length: 5.94 in Height: 3.3 in Features of Hawke Sport Optics Digi-Scope Smartphone Adapter Compatible with most binoculars and spotting scopes. Phone Width Range (in) - 2.6-3.7 Package Contents: Hawke Sport Optics Digi-Scope Smartphone Adapter Manual Hawke Sport Optics 64031: Digi-Scope Smartphone Adapter Black