by Sennheiser

• Radio Frequency signal allows for clear reception in other rooms or even outside in the garden or garage (up to 100 foot range)
• Connects to the Audio Output jacks on your TV, DVD, or Sound system
• One rechargeable BA 300 battery included. Provides up to 12 hours per charge with a lifespan of approximately 2 years. Transmitter includes built-in recharging ports for an additional BA 300 battery (see Related Products below).
• Built-in neckloop for use with a hearing aid or CI processor that has an active telecoil (T-switch). Optional 3.5mm audio jack designed for use with a headset (see Related Products below)
• Large volume control allows for ease of use. Unplug the neckloop or headset to turn off the 840S receiver
• Three available radio frequencies for clear reception and the use of multiple transmitters in different rooms
• Other people can adjust the TV or music volume as they please
• Two year warranty
• For more information, click here to read the User Manual (PDF format)