Stay in tune and connected while strolling down the street with the Motorola Motorokr S9 active Bluetooth headphones. Combining ease of use with the latest Bluetooth wireless technology the phones are ideal for Bluetooth-enabled cell phone owners or for iPod owners with compatible adapters. The S9 phones are distinguished by a behind-the-head design that weighs just over an ounce providing the ultimate in comfort whether you're working out or riding mass transit. The phones' ultra-compact 0.51-inch ear buds meanwhile fit softly in the ear even during extended use--a must for long conversations or listening sessions. And users will love the innovative touch-sensitive controls on the sides of the headband. The touch controls let you easily adjust the volume skip or repeat tracks or answer a phone call while on the move. A mobile phone with the Bluetooth Stereo Profile (A2DP) or Bluetooth Adapter for iPod is required for stereo listening.