Phone3DVU, also works with medium format slides

Our New Phone3DVU is here! Also works with medium format slides Phone 3DVU for phones 6.5-7.5 inches.  Also works as a medium format slide viewer.  This viewer contains no lenses and works using a unique concave mirror system. All mirrors are first surface.  It allows for a longer focal length and does not use the suboptimal fresnel lens of most phone viewers.  This allows viewing from the window at eye level and also a few inches from the viewer if preferred.   Pupil distance: about 65mm, depending on the phone, software adjustableCell phone: generally 7 inch or less can be applied to the phone, specifically the width ofthe phone ≤ 8CM can be applied (16:9 screen 6 inch cell phone width is 8 centimeters).Accessories: headband, Bluetooth handle, glasses case, moisture-proof agent, semi-transparent concave mirror. It boasts a Bluetooth controller optimized for Android devices, and it fits perfectly with an iPhone Max for use in slide show mode.