--- title: Solid State Battery: Donut's Controversial Leap | daily.dev description: Bluetooth audio has evolved significantly over 25 years, from Basic Rate (BR) radio in 1999 to the modern LE Audio architecture introduced in Bluetooth 5.2.... canonical: https://daily.dev/posts/solid-state-battery-donut-s-controversial-leap-0bgweyvwd twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Solid State Battery: Donut's Controversial Leap | daily.dev og:description: Bluetooth audio has evolved significantly over 25 years, from Basic Rate (BR) radio in 1999 to the modern LE Audio architecture introduced in Bluetooth 5.2.... og:url: https://daily.dev/posts/solid-state-battery-donut-s-controversial-leap-0bgweyvwd og:image: https://api.daily.dev/og/posts/0bgWEyvWd.png og:image:alt: Solid State Battery: Donut's Controversial Leap og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Solid State Battery: Donut's Controversial Leap **[IEEE Spectrum](https://daily.dev/sources/ieeespectrum)** · 12 min read · 0 upvotes · 0 comments ## Summary Bluetooth audio has evolved significantly over 25 years, from Basic Rate (BR) radio in 1999 to the modern LE Audio architecture introduced in Bluetooth 5.2. Key advances include the LC3 codec delivering better audio quality at lower bitrates than SBC, Connected Isochronous Streams (CIS) enabling precise scheduling and power-efficient radio sleep cycles, and Broadcast Isochronous Streams (BIS/Auracast) supporting one-to-many audio delivery. These improvements benefit hearing aids (longer battery life, better intelligibility), gaming headsets (lower latency, stereo voice), and public broadcast scenarios. The article also covers audio testing methodologies using anthropomorphic fixtures and the Audio Precision Bluetooth 5 module. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Mangrove Lithium Cuts Waste in Battery Production](https://daily.dev/posts/mangrove-lithium-cuts-waste-in-battery-production-qw2z3h1ib) · IEEE Spectrum · 0 upvotes · 0 comments - [Artificial Muscles, Boston Dynamics, and More Videos](https://daily.dev/posts/artificial-muscles-boston-dynamics-and-more-videos-ynar2xmxj) · IEEE Spectrum · 0 upvotes · 0 comments - [AI and Humans Verify Fields Medal Proof for the First Time](https://daily.dev/posts/ai-and-humans-verify-fields-medal-proof-for-the-first-time-5mcjulbtf) · IEEE Spectrum · 0 upvotes · 0 comments - [Videos: Farming Robots, Humanoid Robots, and More](https://daily.dev/posts/videos-farming-robots-humanoid-robots-and-more-ucfdunrep) · IEEE Spectrum · 0 upvotes · 0 comments - [The Bluetooth LE Audio Handbook: From "Why Does My Call Sound Like a Tin Can?" to AOSP Implementation](https://daily.dev/posts/the-bluetooth-le-audio-handbook-from-why-does-my-call-sound-like-a-tin-can-to-aosp-implementatio-2bs5mhhhz) · freeCodeCamp · 1 upvotes · 0 comments --- Tags: [#bluetooth](https://daily.dev/tags/bluetooth) [View this post on daily.dev](https://daily.dev/posts/solid-state-battery-donut-s-controversial-leap-0bgweyvwd) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Solid State Battery: Donut's Controversial Leap","url":"https://daily.dev/posts/solid-state-battery-donut-s-controversial-leap-0bgweyvwd","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/solid-state-battery-donut-s-controversial-leap-0bgweyvwd"},"datePublished":"2026-03-11T14:01:13.912Z","dateModified":"2026-03-11T14:01:44.819Z","description":"Bluetooth audio has evolved significantly over 25 years, from Basic Rate (BR) radio in 1999 to the modern LE Audio architecture introduced in Bluetooth 5.2....","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/43373d59f09cb322844265d0ba3e0ace?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/43373d59f09cb322844265d0ba3e0ace?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"IEEE Spectrum","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"IEEE Spectrum","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/b123f5e8420e492ab36f6adb30c1793a","url":"https://daily.dev/sources/ieeespectrum"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/solid-state-battery-donut-s-controversial-leap-0bgweyvwd","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"bluetooth","timeRequired":"PT12M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"IEEE Spectrum","item":"https://daily.dev/sources/ieeespectrum"},{"@type":"ListItem","position":3,"name":"Solid State Battery: Donut's Controversial Leap"}]} ```