The cordless listening system guarantees you excellent sound that can be, for example, individually treble-emphasized. With its separately switchable microphone amplification the receiver is just like reading glasses for your ears: speech becomes more understandable, making conversation easier. The activated microphones also improve your ability to perceive ambient noises such as the ringing of a telephone while watching TV.
Additional Features
Easy to connect and to use
Excellent stereo sound, individually adjustable
Three selectable hearing settings on the transmitter: optimized speech intelligibility due to switchable compression and treble boost
Individually adjustable treble boost
Infra-red audio transmission for cordless mobility of up to 12 m within a room
Two switchable microphones on the receiver pick up and amplify surrounding noise allowing the user to hear ambient sounds such as the phone ringing whilst watching TV
Foldable receiver and supplied carrying case for easy transportation
Amplified stereo sound when you are out and about and in rooms equipped with infra-red technology (e.g. theater)
Large, ergonomic volume control and balance control on the receiver
Precisely fitting, flexible ear pads ensure high wearing comfort
Receiver with automatic on/off function
Receiver can be placed into the transmitter's charging compartment either way round
Lithium-polymer rechargeable battery for 12 hours of continuous use
What's in the box?
1 RI 900 stethoset receiver
1 TI 900 transmitter / charging station
1 BA 300 battery
2 pairs of replacement earpads
1 Power supply with national adapters for EU, UK, US
1 TV RCA adapter
1 TV SCART adapter
1 connection cable with two 3.5 mm stereo jack plugs and one adapter to 1/4" (6.3 mm) jack socket
1 carry case
Technical Data
Wearing style: Stethoset
Color: Silver
Dimensions Receiver: 240 x 120 x 25 mm
Dimensions Transmitter: 115 x 145 x 40 mm
Frequency response: 50 - 16000 Hz
THD, total harmonic distortion: < 1 %
Weight Receiver: ~ 73 g
Weight Transmitter: ~ 260 g
Charging time: 3 h
Microphone connector 3,5 mm, same socket as Audio-XLR connector
Signal-to-noise ratio typ. 75 dB(A)
Operating time Receiver: up to 12 h
Modulation FM, stereo
Acoustic amplification max. 20 dB (A)
Max. Sound pressure level (active) 125 dB
Receiving frequency 2,3 MHz/2,8 MHz/95 kHz
Transmission frequency 2,3 MHz / 2,8 MHz
Transmission range up to 12 m
*Warning (for California residents only): Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Every Consumer Products company is required to post the warning no matter if their products pose any harm. Sennheiser products are all RoHs compliant, yet we are by law required to post the Proposition 65 warning message anyway.
