We've been playing with Motorola's recently-announced Endeavor HX1 for the past few hours, and we're just going to come right out with it: this is the best Bluetooth headset we've ever used. Moto claims that the HX1 is the world's first consumer headset to use "true bone conduction technology," a veiled (but obvious) reference to the external cheek-resting sensor found on Jawbone's devices -- and indeed, the Jawbone Prime is the most obvious direct competitor to the HX1. Both devices offer decent styling, feature optional earloops and a selection of earbuds for a tighte
