The Sennheiser EW 122P G4 Wireless Lavalier Mic Systemcamera-mount wireless lavalier microphone system features the proven combination of reliability, flexible control, and broadcast-quality sound that has made the EW Series an industry standard for videographers, journalists, and content creators all over the world.

The EW 122P G4 gives you the tools to adapt and meet the wireless challenges that inevitably arise on set. The frequency scan function automatically searches for the cleanest frequency at your location, while the adjustable input sensitivity on the transmitter accommodates mic levels ranging from booming voices to quiet speech, and even line-level audio.

The system includes an ME 4 cardioid lavalier mic, a bodypack transmitter, and a camera-mount receiver. It connects to a camcorder or a DSLR/mirrorless camera to capture crisp-sounding speech or dialog in noisy environments, for projects ranging from documentaries to wedding videos, corporate spots, and hands-free interviews.

The EW 122P G4 is backward-compatible with previous evolution systems, giving you the ability to mix and match G4/G3/G2/G1 receivers or bodypack, handheld, and plug-on transmitters. It is also compatible with EW 500 systems.

For Mobile Journalist, Videographer    ME 4 Cardioid Lav Mic    Rugged Bodypack Transmitter    Diversity Camera-Mount Receiver    1680 Auto-Scan Frequencies    Advanced Controls for Flexible Use    Daylight-Readable Display    8-Hour AA Batteries    Up to 12 Mics on Set / 330' Range

• The EW 122P G4 features rugged, all-metal chassis well suited for extended use on location. The lightweight and compact bodypack transmitter is easy to conceal. Its rounded edges are soft to the touch making it comfortable to wear for the talent. A locking connector ensures that your lav doesn’t detach at a critical moment, while a convenient switch allows you to mute your mic.
• Using the included shoemount adapter, the equally compact receiver easily mounts on your camera without adding much weight. The included cables allow you to connect the receiver to the 3.5mm or XLR audio input of any DSLR/mirrorless, camcorder, or recording device.
• Both transmitter and receiver feature LED displays showing reception quality, battery status, and audio level. To get you going quickly, they synchronize via infrared interface, with the simple push of a button.

• The EW 122P G4 ships with an ME 4 cardioid lavalier microphone, which delivers a natural sound optimized for speech intelligibility. Its directional cardioid polar pattern helps to reject unwanted background sound, making it ideal in loud environments such as trade-show floors, busy public areas, or sporting events.
• To take full advantage of the ME 4’s dynamic range, the system employs proprietary HDX compander technology, preserving your sound without adding unwanted noise during transmission, and delivering audio with remarkable accuracy and quality.

• Adaptive-diversity reception for reliable transmission up to 330'
• 42 MHz bandwidth with 1680 tunable UHF frequencies for clean reception
• 20 frequency banks, each with up to 12 factory-preset channels to prevent intermodulation
• Pilot tone squelch for eliminating RF noise when transmitter is turned off
• Receiver with adjustable output range of 42 dB to match the audio input of your camera or recording device
• User-friendly menu operation with flexible control options
• Transmitter and receiver feature 4-step battery-life indicator
• Auto-Lock function avoids accidental changing of settings
• RF Mute function
• 8 hours of battery life
• Powered via AA batteries or rechargeable BA 2015 Accupack batteries (available separately)
• Side contacts for recharging the Accupacks without removing them from either transmitter or receiver—requires the L 2015 quick-charging unit (available separately)
• Operate up to 12 wireless mics at once on set
• Unlike digital wireless systems, the SK 100 G4 transmitter can transmit to an unlimited number of EW Series receivers
• Wide range of accessories adapts the system to a variety of applications

• Bandwidth: Up to 46 MHz vs up to 88 MHz
• UHF Frequencies: 1680 vs up to 3520
• RF Output Power: Fixed 30 mW vs adjustable 10/30/50 mW
• Mics at Once: Up to 12 mics vs up to 32 mics
• Included Lavalier Mic: ME 2-II omni or ME 4 cardioid vs professional MKE 2 omni
• Headphone Output: No vs yes
• Audio Output: Unbalanced vs balanced
• Plug-On Transmitter: No phantom vs +48V phantom power

Related Questions and Answers

Q: 1. What rechargeable battery pack does this take?

A: The transmitter uses the Sennheiser BA2015G2 battery pack and L2015G2 charging station. https://www.bhphotovideo.com/c/product/324393-REG/Sennheiser_BA2015G2_BA_2015G2_Rechargeable_Battery.html https://www.bhphotovideo.com/c/product/1367658-REG/sennheiser_k2015_charging_station_with.html

Q: 2. Can the transmitter be battery powered? Perhaps via an Audioroot BDS?

A: While I haven't experimented with it, technically you should be able to. It's a 12vdc input. So as long as you have the right cable and an adequate battery, I don't see why not.

Q: 3. can each receiver receive a separate channel? one XLR feeds one receiver, the other XLR feeds the other?

A: This is not possible. The microphone inputs are configured as a stereo output to each receiver.

Q: 4. Is the xlr out line level?

A: The XLR out is a balanced MIC level output, while the 1/4-inch out is an unbalanced LINE level signal.

Q: 5. Hello! This package have two receivers only; Can I use more receivers for same transmitter over same frequency?

A: Yes, you can add more recievers, which would all receive the same mix. The appropriate reciever is the Sennheiser EK IEM G4 Stereo Bodypack Receiver with IE 4 Earphones (A: 516 to 558 MHz), BH #SEEKIEMG4A.

Q: 6. which frequency set is better? and what are the applications of each: A, A1, G?

A: In general, all of the frequency ranges offered for the Sennheiser EW 100 G4-ME2 Wireless Omni Lavalier Microphone System can be considered equal. One becomes better than the others when assessing factors such as location and other wireless systems existing and operating in the same environment. For instance, some cities have more open channels on a specific range than others. If this system is being integrated into a scenario with other wireless microphones, the existing frequency ranges of those microphones should also be taken into consideration when choosing a frequency for the Sennheiser. This system has 1,680 potential frequencies on each range and the ability to scan for the cleanest channel based on location, so it is hard to go wrong with any range.

Q: 7. can you add more receivers than two?

A: Yes you can. When adding additional receivers, make sure they are all on the same band and then just tune all receivers to the same frequency and it will work perfectly.

Q: 8. Are these zero-latency? There is nothing more distracting than hearing yourself with a tiny delay.

A: These types of UHF frequency based systems will have the lowest latency possible when transmitting audio.

Q: 9. Can you plug a hand held mic into the lavalier transmitter?

A: You could plug a Dynamic mic into the transmitter using this specific adapter B&H # SECL2.

Q: 10. in terms of heat dissipation, is it safe to operate this inside a K-Tek Stingray audio bag for IFB?

A: Yes it is safe to operate the Sennheiser SR IEM G4 Stereo Transmitter inside of an audio bag for IFB.