Electronica Direct via Amazon offers Prime members the Soul Electronics Volt Bluetooth Pro Hi-Definition On-Ear Headphones in Black, model no. SV3BLK, for $29.77 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, shipping adds $6.49.) That's $5 below our mention from two weeks ago and the lowest total price we've seen. (It's a current low of $15.) They feature Bluetooth 4.0, up to 12-hour battery life, dual microphones, and universal 1-button remote for Apple, Android, Samsung, Blackberry, and other manufacturers.