Vain Ultra, with 6 hours battery life and up to 24 hours when using the smooth wireless charging case. Designed and uniquely ear-tuned by us in Sweden - the premium VAIN sound is the result of long development, testing, and dedication. The sound of the Ultra earbuds is truly first-class, with deep heavy bass, excellent treble, and a perfectly balanced midrange. Experience sound the VAIN STHLM way.