1. 10-30x42 ZOOM telescope This Good-Power ZOOM telescope is equipped with a real 16mm eyepiece and a 42mm large objective lens, which can achieve a maximum ZOOM effect of 30 times, presenting a farther and clearer view. It has a top-level wide field of view and can be used with your smartphone to obtain ultra-clear images and record them, being very convenient for outdoor observation and monitoring activities like observing birds or hiking. 2. Our 10-30x42 ZOOM telescope features advanced Fully Multi-Coating technology and large BAK4 prism lens. This increases the amount of light transmission and reduces unnecessary light reflection, providing clear, good-contrast, color-accurate images simultaneously. Whether you wear glasses or not, this ZOOM telescope can a nice view during outdoor adventures and you won't feel dizzy even after long-time viewing. 3. Our ZOOM telescope comes with a good-quality smartphone stand and a sturdy tripod that can be adjusted to two different angles and 3 lengths as required. Professionally designed and easy to install, it ensures clearer, brighter images without jitter. 4. The ZOOM telescope adopts advanced FMC lens and BAK-4 prism, and the eyepiece consists of three latest fully optical lenses, increasing the light transmittance to 99.5%. This greatly ensures excellent light transmittance and image brightness, making your field of vision brighter, the image clearer and sharper.