![Image of Knowles KN1 Reference Design Wireless Earphones](http://www.digikey.cn/-/media/Images/PTM/K/Knowles/KN1%20Reference%20Design%20Wireless%20Earphones/Headphones-SM.jpg?la=zh-CN-rmb&ts=a41c3b84-7052-4ae2-98a1-25dff422796d)
This presentation will introduce the KN1 hybrid TWS earphones from Knowles and go over the key features of the reference design.
Duration: 10 minutes![FlexiCap Multilayer Capacitors](http://www.digikey.cn/-/media/Images/PTM/K/Knowles%20Syfer/FlexiCap%20Multilayer%20Capacitor/flexicap_sm.jpg?la=zh-CN-rmb&ts=27025865-4558-4ac1-b73c-21a2c12bfba8)
FlexiCap helps prevent the stress of bending and thermal expansion/contraction.
Duration: 3 minutes![differential MEMS](http://www.digikey.cn/-/media/Images/PTM/K/Knowles/Microphone%20Interfaces/microphone-Interfaces_sm.jpg?la=zh-CN-rmb&ts=47a443c5-2566-4364-9087-a77b23240bac)
Digital microphones provide an upside to end applications and enable intelligent audio solutions with the introduction of Knowles’ multi-mode microphones.
Duration: 5 minutes![armature driver](http://www.digikey.cn/-/media/Images/PTM/K/Knowles/Using%20Dynamic%20Speakers/in-ear-wearables_sm.jpg?la=zh-CN-rmb&ts=3a64c6f5-e8ae-440f-a21f-85fa5b93beb9)
DigiKey, Knowles, PTM, tutorial, speakers, drivers, armature driver, in-ear wearable.
Duration: 5 minutes![Knowles Frequency Response Armature Drivers and Earphones](http://www.digikey.cn/-/media/Images/PTM/K/Knowles/Measuring%20the%20Frequency%20Response%20of%20Balanced%20Armature%20Drivers%20and%20Earphones/FrequencyResponse_sm.jpg?la=zh-CN-rmb&ts=dc70c6bd-3031-43ad-82fa-40ecddcfbc60)
General characteristics of different measurement methods, the advantages and limitations of each, and trying to understand an earphone’s frequency response.
Duration: 10 minutes![MEMS Microphones](http://www.digikey.cn/-/media/Images/PTM/K/Knowles/Ultrasonic%20Applications/ultrasonic_sm.jpg?la=zh-CN-rmb&ts=9baad626-84b6-40ea-9ec6-ff66b5c9394a)
This tutorial will discuss the general characteristics of certain Knowles microphones in the ultrasonic band.
Duration: 5 minutes![Speaker Wide Band FK Series](http://www.digikey.cn/-/media/Images/PTM/K/Knowles/Designing%20Balanced%20Armature/Armature-Earphones_sm.jpg?la=zh-CN-rmb&ts=8fe39537-c5c5-4841-94cf-afdba081b6dc)
Knowles Balanced Armature technology efficiently converts and electrical signal to sound.
Duration: 10 minutes![Mic Cond Analog Omni -53dB](http://www.digikey.cn/-/media/Images/PTM/K/Knowles/Intro%20to%20Microphones/Introduction-To-Microphones_sm.jpg?la=zh-CN-rmb&ts=bdf4d26d-15ae-4550-8fbb-d470de346a38)
Introduction to the terminology and anatomy of microphones to help readers properly identify the correct microphone for an application's needs.
Duration: 10 minutes