No More Batteries To Buy! Introducing the all-new SNARK Rechargeable clip-on tuner! The SN-RE features that famous SNARK tuning accuracy for all instruments and super bright display for easy to read on-stage or backstage tuning now made rechargeable! Charge lasts weeks or months via any USB source! PLUS: The SNARK Rechargeable has a proprietary rubber coating to help block stage sounds or vibrations from affecting tuning accuracy.