Sennheiser AVX-835 SET-4-US igital Camera-Mount Wireless Cardioid Handheld Microphone System (1.9 GHz) - 505863

Product Overview

The Sennheiser AVX-835 SET-4 is a professional camera-mount digital wireless microphone system operating on the 1.9 GHz DECT band. It pairs the compact EK AVX camera-mount receiver with a handheld transmitter fitted with the MMD 835 cardioid dynamic capsule, delivering broadcast-quality audio directly to DSLR, mirrorless, and camcorder cameras. Designed for solo video operators, the system handles frequency selection and microphone level control automatically, so no sound engineer is required on set. This is the SET-4 variant, optimized for the US 1.9 GHz frequency allocation.

Product Description

The AVX-835 SET-4 is built around Sennheiser's AVX automatic wireless platform, which eliminates the manual setup steps that slow down single-operator video shoots. The moment the system powers on, it performs automatic frequency selection across the 1.9 GHz DECT spectrum, identifying a clean channel and locking the transmitter and receiver together without user intervention. Automatic level control continuously adjusts gain to prevent clipping, even in dynamic environments like red carpet events, corporate Q&A sessions, and documentary-style interviews. The MMD 835 capsule is the same cardioid dynamic element found in Sennheiser's acclaimed wired e 835 vocal microphone, delivering a tight pickup pattern that attenuates handling noise and ambient sound from the sides and rear. The EK AVX camera-mount receiver clips directly onto a standard camera hot shoe and connects via a locking 3.5 mm TRS jack or XLR adapter, feeding clean audio into the camera's mic input with no mixer required. Both transmitter and receiver run on built-in rechargeable batteries with up to 4 hours of runtime, and the receiver can also draw power via USB, extending run time indefinitely when a power bank or USB port is available. The system supports up to 8 simultaneous wireless systems on set, making it compatible with multi-camera interview setups. Operating range extends to 98 feet (approximately 30 meters) line of sight, covering typical indoor and outdoor video shooting scenarios. The peer-to-peer encrypted digital link ensures the audio feed is protected from RF interference and eavesdropping. The entire system weighs under 200 grams, making it practical for run-and-gun and event videography where carrying heavy gear is not feasible.

Key Features

• 1.9 GHz DECT Digital Wireless — License-free, interference-resistant frequency band with encrypted peer-to-peer digital audio transmission.
• MMD 835 Cardioid Dynamic Capsule — Tight cardioid pickup pattern rejects off-axis noise; robust dynamic element handles high SPL without distortion.
• Automatic Frequency Selection — System scans and locks onto a clean channel at power-on, eliminating manual frequency coordination.
• Automatic Microphone Level Control — Continuously adjusts transmitter gain to prevent clipping in unpredictable acoustic environments.
• Camera-Mount EK AVX Receiver — Attaches to hot shoe; outputs via locking 3.5 mm TRS or optional XLR adapter directly into camera mic input.
• Rechargeable Batteries with USB Power — Up to 4 hours on internal rechargeable cells; receiver runs indefinitely via USB power input.
• Up to 8 Simultaneous Systems — Compatible with other AVX transmitters on the same set for multi-mic productions.
• 98-Foot Operating Range — 29.9 m line-of-sight range covers typical indoor studio, event, and ENG shooting environments.
• Encrypted Digital Link — Peer-to-peer connection protects audio signal from RF interference and unauthorized interception.
• Compact and Lightweight — Minimal footprint on camera rig; designed for solo operators who cannot carry additional audio equipment.

Typical Applications

• Solo video operator ENG and documentary production
• DSLR and mirrorless camera-based interview recording
• Wedding videography requiring discreet, quick-deploy audio
• Corporate video productions and executive interviews
• Red carpet and event coverage with handheld mic passing between subjects
• Vlogging and YouTube content creation requiring broadcast-quality audio
• Man-on-the-street interviews and news gathering

Technical Specifications

Frequently Asked Questions

Q: Does the AVX-835 SET-4 require a license to operate in the United States?

No. The system operates on the 1.9 GHz DECT band, which is license-free for use in the United States. No FCC coordination is required.

Q: What cameras is the EK AVX receiver compatible with?

The EK AVX receiver is compatible with any camera that has a standard hot shoe and a 3.5 mm mic input, including Canon, Sony, Nikon, Panasonic, and Fujifilm DSLR and mirrorless cameras. An optional XLR adapter is available for cameras with balanced XLR inputs.

Q: Does the system require manual frequency setup?

No. The AVX platform performs automatic frequency selection every time the system powers on. It scans the 1.9 GHz band, selects a clean channel, and synchronizes the transmitter and receiver automatically within seconds.

Q: Can I run multiple AVX systems simultaneously?

Yes. The AVX platform supports up to 8 simultaneous wireless systems on the same set. Each system automatically avoids the channels used by other active AVX devices in range.

Q: What is included in the AVX-835 SET-4 box?

The set includes the EK AVX camera-mount receiver, one SKM AVX handheld transmitter with MMD 835 cardioid capsule, charging cables, and a camera shoe adapter. Refer to Sennheiser's official documentation for the complete in-box accessory list.

Q: How long does the battery last, and can I extend it?

The transmitter provides up to 4 hours on its internal rechargeable battery. The receiver can be powered continuously via USB, making power banks a practical field solution for extended shoots.

Q: Is the MMD 835 capsule interchangeable?

Yes. The SKM AVX transmitter uses Sennheiser's standard capsule coupling system, allowing other compatible Sennheiser capsules to be swapped in depending on the application.

Q: What is the difference between the AVX and EW-D platforms?

The AVX platform is optimized for camera-mount operation with fully automatic setup and targets solo video operators. The EW-D (Evolution Wireless Digital) platform operates on UHF frequencies, supports longer range, higher channel counts, and is suited for both camera and rack-mount receiver configurations.