The quality of the speech and music transmitted by the IS 410 is outstanding within a 12 meter-radius from the audio source. This elegant headset weighs just 50 grams and, thanks to the under-the-chin design, is comfortable to wear, even for people who wear eyeglasses. The ear tips are automatically switched on as soon as the side pieces are opened slightly for slipping on. For ease of use, each ear tip has a volume and balance control. Audio compression is used for clear, distinct speech quality when watching TV. The volume can be adjusted intuitively from the back while the headset is in use. The transmitter also functions as a stand and charger unit for the headset and offers space for a spare rechargeable battery.