Wireless home theater cans? A dime a dozen these days -- luckily, we're still suckers for a handsome charging dock. Debuting in the halls of the Las Vegas convention center are Rapoo's H9080 Home Entertainment Wireless Headphones, a leather-clad pair of audio earmuffs that promise deep, on-demand bass boosting and clean treble tones. Rapoo attributes the sets' audio fidelity to COM-Ti membrane vibration technolog