The RS135 was designed by top-quality German engineers to wirelessly enhance the sound from your TV, stereo or virtually any other audio source; without disturbing those around you. Fully charged it operates for 20 hours. The three-position channel selector allows you to choose an interference-free channel for clear reception--- through walls and ceilings up to 328 feet, which allows you the freedom to roam.  The RS135-9 easily connects to any standard TV via its RCA jacks (red and white outputs) and 1/8" and 1/4" headphone sockets (anything with a headphone jack, including laptop and desktop computers). The transmitter features a convenient automatic on/off circuit; when you activate your audio source, the transmitter powers on without switches or buttons.  Five minutes after your turn off your audio source, the transmitter shuts off to conserve power.  To store and recharge, simply set the headphone back on the cradle.

Features:

• Amplification with volume control on the headphone
• Detailed, warm sound transmission with strong bass
• Open-air headphone design for excellent acoustic performance
• Radio Frequency (RF) technology for up to 328 ft range through walls and ceilings
• Connects through your TV/sound system's RCA jacks (red & white), 3.5mm headphone or 6.3mm (1/4") plug
• 20 hours operating time with 2 NiMH AAA rechargeable batteries
• Transmitter also functions as charging cradle and can be wall-mounted
• Automatic On/Off function
• RF transmitter supports an extra headphone receiver (HDR120) for dual users (sold separately)