[Series New Product Introduction] The series products are simple and practical, economical, focusing on core functions and design, discarding unnecessary decorations and materials. M4B is a magnetic phone selfie monitor that can use the rear camera to take front-facing photos, enhancing selfie and video quality, making framing convenient and achieving satisfying results easily. [Quick Magnetic Installation]This mini rear camera mirror display can be attached to MagSafe-compatible smartphones or phones with magnetic cases through magnetic attraction. Compatible with iPhone 16, 15, 14, 13 Pro Max and other models, can be used as a photography accessory for phone and video blogging. For non-magnetic phones, please use a magnetic ring. Note: Not compatible with iPhone 17 series and S25 Android phones, does not support 4K recording [Wireless Delay-Free Recording]The phone rear camera monitor can mirror the phone screen in real-time with high resolution, making it an ideal choice for streamers, social media influencers for selfies, vlogs, live broadcasts, video recording, etc. Adjustable brightness ensures clear viewing even in bright light. Enjoy wireless shutter control with the remote control. [Lightweight and Portable, a Good Helper for Travel Shooting] This compact 4-inch selfie monitor can easily fit into a pocket or camera bag for carrying around, or it can be attached to the back of a phone because it weighs only 3.58 ounces/101.4 grams. It is an essential perfect companion for content creators and internet celebrities. [1500mAh Rechargeable Battery ] Get up to 2h 25min of continuous use on a full charge. Recharge easily via the USB C port with portable chargers, laptops, car chargers, or other USB power sources. The M4B back camera selfie monitor supports one click 180 ° screen rotation to eliminate inverted images. NOTE: For optimal battery longevity, please fully charge the device before first usePC