Amazon offers Prime members the LG Gruve On-Ear Bluetooth 3.0 Headset in Black, model no. HBS-600, for $33.34 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.85.) That's $5 under our mention from last month and the lowest total price we could find by $12. Features include a built-in mic, HD Voice compatibility, Google Voice integration, multi-point connection, padded ear cups, and optional wired connectivity.
Update: Specs corrected.