General Description
The RS 140 is a closed, circumaural RF wireless headphone system, equipped with balance control and switchable compression for better speech intelligibility. The headphones are able to go loud, so they are ideal if a bit of extra volume is needed, while their closed design prevents sound leakage. The system is extremely user-friendly due to its "easy recharge' function and intelligent auto-tuning. Acoustic and visual signals confirm the adjustment of new settings. An innovative, self-learning automatic level control ensures that the headphones always reproduce an optimum audio level. The RS 140 system features an excellent sound image with outstanding bass response, making it an ideal choice for all types of music and TV use.
Features
Closed, circumaural RF wireless headphone system
Excellent sound for hi-fi systems and TVs
Switchable compression ensures excellent speech intelligibility
Balance control for right/left volume adjustment
Headphones are able to go loud to compensate for moderate hearing impairment
Automatic search tuning with memory function
Three selectable RF channels
Optimum audio levels due to self-learning automatic level control
Very lightweight headphones, extremely comfortable to wear
Range of up to 150 m (864 MHz variant), or up to 100 m (926 MHz variant)
Convenient storing and recharging function
Rechargeable NiMH batteries included
Acoustic and visual signals confirm the adjustment of new settings
Operating time: approx. 23 hours
2-year guarantee
Delivery Includes
Transmitter with audio cable (3.5 mm jack plug)
Adaptor to ¼" jack plug (additional RCA phono adaptor for 926 MHz variant)
Mains unit
Two rechargeable NiMH batteries
Operating instructions

Technical Data
Max. Sound pressure level (aktiv) 110 dB
Powering 9V DC (transmitter); AAA batteries (receiver)
Weight (Transmitter) 430 g (incl. audio cable)
Weight (Receiver) 280 g (incl. batteries)
Range up to 150 m (for 926 MHz up to 100 m)
Modulation FM Stereo
Signal-to-noise ratio > 68 dBA
RF frequency range 863 ... 865 MHz or 926 ... 928MHz
Dimensions (Transmitter) 85 x 225 x 133 mm
Frequency response (headphones) 18.....21000 Hz
Transducer principle dynamic, closed
Operating time (Accupack) 20-25 h
THD, total harmonic distortion < 0,5 %
Jack plug 3,5mm / 6,3 mm stereo (863-865 MHz), cinch (926-928 MHz)