Sennheiser IE 100 PRO Wireless Bluetooth In-Ear Monitor Headphones

Sennheiser's IE 100 PRO headphones go wireless! Use these on-stage with an IEM receiver, then enjoy their Bluetooth functionality at home or on the go.

The Sennheiser IE 100 PRO helps users discover the power of dynamic in-ear monitors on stage. The IE 100 PRO utilizes the same robust connector developed for IE 400 PRO and IE 500 PRO. Users have the option to go wireless with the included IE PRO BT Connector. Due to the common connector, the IE PRO BT Connector is compatible with the IE 100 PRO, IE 400 PRO and IE 500 PRO.

Improve the way you perform on stage and enrich private listening pleasure by enhancing the way you hear -- wired or wireless, it's your choice.


- Wireless connection to your mobile device
- Built-in microphone and remote for call and music control
- Lightweight and durable semi-wireless connector cable
- AptX Low Latency ensures perfect synchronization with video
- Up to 10 hours of battery life for all-day listening

Wireless in-ear monitoring headphone set featuring 10mm dynamic transducer and black detachable 1.3m cable with 3.5mm jack and bluetooth connector. Includes (1) IE 100 PRO Black, (1) 1.3m straight black cable with 3.5mm jack, (1) IE PRO BT bluetooth connector, (1) USB-A to USB-C charging cable, (1) soft pouch, (1) set of silicone ear adapters (S, M, L), (1) set of foam ear adapters (M), (1) 6.3mm (1/4") jack adapter and (1) cleaning tool, black
WARNING: Cancer and Reproductive Harm -

Dimensions and Weight in Packaging
Shipping Weight: 0.43 lbs
Shipping Dimensions: 9 x 5 x 2 in
Manufacturer Part Number (MPN): 509171
Shipping Weight: 0.5 lbs
Shipping Dimensions: 9 x 5 x 2 in
Manufacturer Part Number (MPN): 509172
Shipping Weight: 0.42 lbs
Shipping Dimensions: 9 x 5 x 2 in
Manufacturer Part Number (MPN): 509173

For support or warranty questions, please contact the manufacturer:
Phone: 877-736-6434

Reviewers gave this product an overall rating of 4.5 out of 5 stars. (2 ratings)
Submitted November 10, 2021 by a customer from

"Definitely get them!"

Overall: 4.5 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
Sennheiser IE 100 PRO Wireless Bluetooth In-Ear Monitor HeadphonesI’m using the headphones right now to listen to music and watch movies via blue tooth. I’m currently using a projector along side with my laptop -So far the headphones sound really clear and precise. it’s almost like when I’m watching a movie or if I’m watching a sports event I’m like right there in that moment with no lag. The headphones don’t feel heavy at all in the ear and that was one of my concerns because my ears are very sensitive. Just make sure you clean your ears and the device for better listening experience. I tend to keep my volume a very comfortable listening level so no distortion fromthese head phones at al unless the mix is horrible. I also purchased them because Sennheiser is a reputable company who stands behind their product so why not pay the price to try them out. I also needed something that had longer battery Definitely? Oh yea!!!!! I’m sure that the clarity gets better on the up top models but it depends on how you’re using the headphones, these are in ear monitors set that are design for performance so I since I also play percussion instruments - I needed something light weight on my head while I’m playing my Congas. Sennheiser does a great job in managing the appearance of the highs the mids so if you’re looking for low bottom end then this is not it. From what I’m hearing so far it’s more than capable of managing all those frequencies so yes I will actually read more mix in these if I have to work on documentary audio. Yes, these are pretty much my go to headphones because I like the way they feel in my ear. I will recommend this to anyone looking for something lightweight, these come with the Bluetooth headphone wire setup and also it has the regular 3.5 mm connection to as well other than that yeah I would actually move up from these in the future when I decide to perform again.Definitely get them and enjoy!

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