🔋🎼【𝟏𝟓𝟎𝟎𝐦𝐀𝐡 𝐁𝐚𝐭𝐭𝐞𝐫𝐲 & 𝐌𝐮𝐬𝐢𝐜 𝐒𝐡𝐚𝐫𝐢𝐧𝐠】This motorcycle bluetooth helmet speakers has a battery capacity of ...

He decided to add some wireless speakers to a motorcycle helmet and design a handlebar-mounted radio. [sswanton] started out by disassembling the ultra-inexpensive, old-school, battery-powered ...