I purchased this for YouTube filming, but since I'm not very tech-savvy, I only tested it once indoors. I haven't used it since, so I'm putting it up for sale. Amazon purchase price: ¥44,690 Currently out of stock. Brand: Moman Features: Wireless Compatible Devices: Smartphones, Tablets Connector Type: HDMI Color: Black UPC: 788934211753 *The battery is not swollen or damaged and has been confirmed to be working properly. *This item does not fall under dangerous goods or prohibited items. Features: The Moman Matrix 600s is a wireless video transmission system that transmits signals up to 1080P 60Hz stably with a transmission distance of within 200M and an ultra-low latency of 0.08s. Designed for filming, the Matrix 600s transmitter and receiver set adopts a fanless design and built-in antennas, making it more compact and portable, and compatible with a wide range of devices. "Matrix 600s Encryption Transmission Algorithm" The system achieves long-distance transmission within 200 meters with a low latency of only 0.08s. Synchronizes clear wireless video signals. "Fanless Silent Design" The HDMI wireless video transmission transmitter and receiver set adopts a new heat dissipation structure instead of a built-in fan. Suppresses noise from the fan during shooting while dissipating heat. "Built-in Antenna & Easy Shooting" Provides stable audio and video signal transmission. Even more convenient for various devices. "Lower Power Consumption & Supports Various Charging Methods" Achieves a power consumption of 3.5W. Half the power consumption compared to other HDMI wireless transmission systems, and also adopts a fanless design, doubling the usage time. Power can also be supplied via USB Type-C and NP-F type batteries. "Supports connection with SDI and HDMI devices" Through the SDI and HDMI input/output ports of the transmitter and receiver, it can support signals up to almost 1080P 60Hz. Suitable for video cameras, DSLR cameras, external camera monitors, etc. "MomanMatrixAPP Real-time monitoring on iOS devices" Compatible with iOS smartphones and tablets, the MomanMatrix app allows real-time screen monitoring, image mode settings, and reading scripts while taking videos during live broadcasts and video shooting. Thank you for your consideration.