Sennheiser AVX-ME2 SET Digital Camera-Mount Wireless Omni Lavalier Microphone System with Mic Hiding Kit (Black/White, 1.9 GHz)

Make sure your Canon c100 audio settings are set to -6 to -12 nothing higher than that and put on some headphones to a monitor audio. Hope this helps.

Unfortunately, there is currently no available XLR plug on transmitter available for the AVX wireless system.

The Sennheiser AVX-ME2 SET Digital Camera-Mount Wireless Omni Lavalier Microphone System (1.9 GHz) is made to work anywhere in North America, under current FCC regulations. It will also work in any region that allows you to use 1.9 GHz band for wireless microphones.

On page 7 of the manual, it states: "When the On/Off/Check button has been pressed, the LED display lights up green to indicate the remaining battery life of the receiver‘s BA 20 accupack (see page 24); when the AF Out button has been pressed, the LED display lights up red to indicate the audio output level (see page 27). When the right LED flashes red, the capacity of the receiver‘s BA 20 accupack is only sufficient for a maximum of 15 minutes of operation." https://www.bhphotovideo.com/lit_files/375153.pdf

A D-tap battery would have too much voltage and would damage the AVX receiver. I would recommend using an external power bank, such as the mophie 22,000mAh powerstation AC Portable Battery Pack (Black), BH #MO4167.

You can purchase the Sennheiser SKM AVX-835S Digital Handheld Microphone Transmitter (B&H # SESKMAVX8354) to use with the AVX EKP Camera-Mount Digital Plug-In Receiver that is included in the AVX-ME2 SET Digital Camera-Mount Wireless Omni Lavalier Microphone System. However, only one transmitter can be used at a time with the AVX EKP receiver. Sennheiser does not offer a dual-channel wireless camera-mountable receiver. There is an AVX combo set available that includes the bodypack transmitter and lavalier mic together packaged together with the handheld transmitter, which is the Sennheiser AVX-Combo SET Digital Camera-Mount Wireless Microphone System (B&H # SEAVXHLS).This system is intended to give you the option of using either transmitter with the receiver, but not both together simultaneously.

The Sennheiser AVX-ME2 SET Digital Camera-Mount Wireless Omni Lavalier Microphone System (1.9 GHz), BH # SEAVXME2SET4, is available for worldwide use without any issues as far as we can confirm. Please check with local authorities.

Sound travels at 1.1 ft/millisecond. So the 19 milliseconds is the same as the echo time from a wall 9 ft away from you. The AVX is using that time to look for the best connection frequencies automatically. The only problem I can imagine for live sound is if you have a singer and a backup orchestra, you don't want the singer to feel late. You could remedy that by a 19ms in the amplification of the orchestra, with respect to what is fed in the ear of the singer. Recorded video can be adjusted in post production, but for most application that is not necessary, since 19ms is consistent with the room reverb from a normal sized room. I use the AVX with MKE2 for recording my class lectures, it feels and works solid like a tank, the quality is excellent, and it requires only a student to remind me to put my mic and turn it on... You may get down to 5ms delay with a system in the range of $5k - $10k, with a big receiver which is manned. You can plug into the AVX directional face mics from Sennheiser, Countryman or DPA, making sure that you get them with the AVX plug, or use an AVX cardioid handheld mic, if ambient noise or amplification is a problem. The sound from a directional mic is a bit drier than from an omni mic.