Here is a concise summary of the transcript:
**Title:** Debunking Muzo: A Crowdfunded "Noise-Cancelling" Device
**Summary:**
* The creator reviews Muzo, a device claiming to cancel noise and create a "privacy bubble" for speech, despite initial skepticism.
* Muzo raised $2.4M on Kickstarter and IndieGoGo, but the creator is unimpressed after testing the device.
* Experiments show Muzo:
+ Doesn't cancel noise, but rather adds its own noise on top of existing sounds.
+ Fails to cancel surface vibrations.
+ Only works as a low-quality speaker.
* The creator attributes Muzo's limitations to the fundamental challenges of active noise cancellation in open spaces.
* An offer is extended to Muzo's creators to retest with a potentially functional unit, but the creator is unconvinced of its efficacy.
Here are the key facts extracted from the text, without opinions, with each fact numbered and in short sentences:
**Product Information**
1. The product being discussed is called "Muzo".
2. Muzo was advertised on Facebook and other platforms, claiming to cancel noise and create a "secrecy bubble".
3. Muzo has raised over $530,000 on Kickstarter and over $1.8 million on IndieGoGo, totaling $2.4 million.
4. Muzo started shipping to customers in September.
**Product Functionality**
5. Muzo sticks to a hard surface (like glass or a table) and uses its actuator to vibrate the surface, turning it into a speaker.
6. Muzo can play sound using its actuator, with better performance at higher frequencies than bass.
7. Sticking Muzo to a surface enhances its bass frequencies.
8. Muzo can be connected to a phone via Bluetooth for use as a speaker.
**Modes and Claims**
9. Muzo has multiple modes, including "Serenity Mode", "Privacy Mode", and "Sleep Mode".
10. Muzo's marketing claims include creating a "personal zone of silence" and protecting speech privacy.
**Testing and Technical Aspects**
11. The reviewer conducted a test with two speakers playing the same tone in reverse to demonstrate noise cancellation limitations.
12. The test showed that noise level can be reduced to some extent, but not completely, and varies with environment and movement.
13. Muzo uses a neomagnetic system and "billion sound technology" (according to its marketing video).
14. The reviewer used an audio spectrum analyzer app to measure sound levels in a controlled test with Muzo.