Costco Sale: Beats Powerbeats3 Wireless Bluetooth Earphones $129.99 by Rhonda July 16, 2020 *UPDATE* 11/26/17. Keep that workout going strong with Powerbeats3 Wireless earphones. It features up to 12 hours of battery life, so the music keeps you moving. Costco has the Beats… 0 FacebookTwitterPinterestEmail