Amazon HollyView  
Hollyland Mars 400S PRO II Wireless SDI HDMI Video Single Receiver, 0.07s Latency 450ft Range, 4 APP Monitoring, 1080p 12Mbps 5G Transmission System for Live Streaming Videography Filmmaking
[What’s NEW? 70ms Ultra-Low Latency, 450ft Transmission Range] Compared to the Mars 400S Pro, the Mars 400S Pro II reduces the latency by 30% and extends the LOS range by 50ft, offering an ultra-low 70ms latency and a stable line-of-sight signal transmission of up to 450ft (150m). Whether you require real-time shooting or high-speed transmission, Mars 400S Pro II meets your needs. Farther & Faster!
[SDI+HDMI Dual Interfaces, 4 APP Monitoring] Equipped with both SDI and HDMI interfaces, Mars 400S Pro II offers wide compatibility for various equipment, whether it's a DSLR camera or a professional film camera. Whether you choose SDI or HDMI for input, both SDI and HDMI OUT ports support video output at the same time. The TX supports 2 RXs, 1 RX & 2 Apps, or 4 devices monitoring through the Hollyview App.
[Up to 1080p, 12Mbps Data Rate, 3 Scene Modes] Mars 400S Pro supports input/output video format of up to 1080p via SDI or HDMI interfaces. The system comes with three scene modes (speed, balance, HD), and the data rate is raised from 6Mbps to 12Mbps for HD monitoring quality. At 12Mbps data rate, it enables 1080p high-definition video transmission, delivering clear, refined image quality with rich details.
[Smart Channel Scan, Direct Live Streaming] Upon startup, Mars 400S Pro II automatically selects the best frequency channels. You can manually select the channels using the RX or the Hollyview App with a visual representation of signal interference levels at each frequency. Mars 400S Pro II supports direct video feed from RX to your PC for live streaming on OBS, vMix, or VLC without a video capture device.
[Multiple Power Supply and Fan Control Modes] Mars 400S Pro II supports NP-F battery (NOT included), 6~16V DC power, and 5-12V USB Type-C wide voltage power supply options. Equ
Hollyland Mars 400S PRO II Wireless SDI HDMI Video Single Receiver, 0.07s Latenc
Amazon PQRQP  
PQRQP 3 in 1 Wireless Lavalier Microphones for iPhone, iPad, Android, Camera, USB-C Microphone, 7-Hour Battery, Mini Microphone with Noise Reduction for Video Recording, Vlog, YouTube, TikTok
Universal Wireless System: Wireless microphone is completely cable-free, delivering a stable audio signal up to 65 feet. You can hold it by hand or clip it on your shirt. With the dual wireless microphone, it is possible to record the voices of multiple people simultaneously. It is a convenient feature for those who need to capture high-quality audio on multiple devices at the same time, whether you're recording a podcast, giving a presentation, or conducting an interview.
Full Compatibility: The upgraded wireless microphone comes with a 3 in 1 universal receiver, eliminating the need to replace multiple individual interfaces or interface cables. Compatible with android smartphones, iphone(including iPhone 15), iPad, laptops, personal computers, camera etc. Mini microphone is suitable for blogging, interviewing, live streaming, blogging, podcasting, youtube, instagram, TikTok.
Smart Noise Cancellation: Our dual wireless microphone is equipped with professional-grade intelligent noise reduction chips and high density spray-proof sponge that helps to cuts off any noise interference and improve audio quality,record every detail of the sound clearly regardless of the surroundings. The omni-directional iphone microphone gives best clear timbre.
Rechargeable Transmitter and Receiver : PQRQP wireless lavalier microphone built-in large capacity rechargeable battery and low power chip, provide more than 7 hours of battery life. Furthermore, this microphone for iPhone also supports charging while recording. With type-C charging cable, the receiver and the phone can be charged at the same time.
Easy Automatic Connection:Wireless microphone is easier to set up. Plug and play, no adapter, Bluetooth or app required, simply plug the receiver(Lightning/TYPE-C/3.5mm port) into your device . and
PQRQP 3 in 1 Wireless Lavalier Microphones for iPhone, iPad, Android, Camera, US
Amazon Shure  
Shure SM81-LC Cardioid Condenser Instrument Microphone for Guitar, Piano, and Cymbals, Includes Swivel Adapter, Attenuator-Switch Lock, Windscreen, Carrying Case, No Cable Included (SM81-LC)
This microphone requires phantom power and performs best with a 48 Vdc supply (IEC-61938). However, it will operate with slightly decreased headroom and sensitivity with supplies as low as 11 Vdc. Most modern mixers provide phantom power. You must use a balanced microphone cable: XLR-to-XLR or XLR-to-TRS.
The SM81 is ruggedly constructed. It operates on phantom power and performs over a wide range of temperatures and humidity conditions. It is furnished with a swivel adapter, attenuator-switch lock, foam windscreen, and case for carrying and storage. Other accessories are available.
20 Hz to 20 kHz frequency response. Flat response curve for accurate reproduction of sound sources.
Low noise and high output clipping level. Low distortion over a wide range of load impedances.
Cardioid polar pattern, uniform with frequency and symmetric about axis, providing maximum rejection and minimum coloration of off-axis sounds
Low RF susceptibility
Selectable low-frequency response: flat, 6 or 18 dB/octave rolloff
0 dB/10 dB lockable attenuator switch
Rugged steel construction for durability. Field-usable over wide range of temperature and humidity conditions.
Cardioid condenser instrument microphone offers a wide frequency response and low self-noise. Features include flat response curve, low noise and high output clipping level, low distortion over a range of load impedances, and low RF susceptibility.
Shure SM81-LC Cardioid Condenser Instrument Microphone for Guitar, Piano, and Cy
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