RK-Y40G Wireless Selfie Monitor with Fill Light

The RK-Y40G combines a wireless selfie monitor, magnetic phone mounting and an integrated fill light in one creator-accessory format. It is intended for rear-camera framing during mobile video, product demonstrations, interviews and live streaming. Its visible light module and source-listed 2000mAh battery distinguish it from the battery-free wired Y40B and from the X40P touchscreen monitor assortment.

Conflicting source details are kept visible

The Alibaba title describes a 4.02-inch screen, while the product gallery prints 3.97 inches. This page therefore does not promote one fixed screen size in the H1. The current sample, active display area and housing dimensions must be measured before packaging is approved. The gallery also lists a 2-5m wireless range, three color temperatures from 3000K to 6500K and 0-100% brightness adjustment; these are source-image claims for verification, not guaranteed batch specifications.

Buyer approval checklist

• Measure the display and confirm resolution, brightness, color, delay and orientation.
• Pair and reconnect with each target phone, operating system and intended camera workflow.
• Test useful range, obstruction behavior and recovery from signal interruption.
• Measure battery capacity, runtime, charging input, recharge time and surface temperature.
• Check fill-light color modes, dimming steps, flicker and brightness consistency.
• Review magnetic retention, silicone contact surfaces, controls, accessories and packaging.

Send the target phone list, runtime requirement and lighting use case with the RFQ. Final screen size, wireless behavior, battery, lighting data and documents should be approved against the current RK-Y40G sample and lot.