Left/right side wearing with protected speaker / Includes USB and wall charger / Superior mobile sound # Improvements in speech clarity and noise reduction are complimented by remarkable design. Not only does the VMX100 fit the contour of your ear, superior personalized wearing comfort is achieved thanks to a unique 3D ball joint. Regardless of ear or Head size and shape, you can count on a comfortable Headset that feels like it was designed just for you. Discreet, durable and sophisticated, the VMX-100 is simple to use and compatible with all Bluetooth Mobile telephones. Combining the legendary high-end "Sennheiser Sound" from Music Recording and reproduction systems with the leading sound perception technologies developed for Digital hearing instruments by William Demant, Sennheiser has created a truly revolutionary wireless mobile headset - the VMX 100. VoiceMax Dual Microphone technology # 3D ball joint for a customized fit without adapters or earbuds # Automatic power off/on when closed/opened # ActiveGard protection against sudden, loud bursts of noise # Bluetooth 2.0 compatible with all Bluetooth-voice enabled mobile phones (*) # Up to 5 hours talk time # Up to 100 hours standby # Includes USB/wall Charger and carry case # Superior Sennheiser Audio quality # Left/right side wearing with protected speaker