BipolArte is very thankful for The Electric Guitar Strap / LED Guitar Strap! It's an amazing accessory which indeed enhance the BipolArte Experience! LED activated leather guitar strap Sound activated responds to very light sounds to full concert sounds includes USB charger 4 to 5 hour battery life USB charger includes indicator light notifying the charge is complete Make sure you order yours now -> https://www.electricguitarstrap.com/shop/ & you may also contact derek.wash@