Product name
UI 770
Art. No.
504534
EAN No.
40 44155 080247
UPC No.
6 15104 23184 9
Product description
Universal interface box
Technical Data
Speaker signal output to headset
Frequency response
100Hz. to 7kHz
Signal output level max.
Limited to 400mV
Microphone signal output to phone
Frequency response
100Hz. to 7kHz
Signal output level* at 94dB
0mV. to 300mV. adjustable
Packaging
Unit Weight
137 grams/4.9 ounces
Unit dimensions
32 x 91 x 101 mm/1.3 x 3.6 x 4 in
Units in distributor master carton
20 pcs
Master carton weight incl. products
10.768 kg/23.74 lbs
Dimensions master carton
430 x 335 x 330 mm/16.9 x 13.2 x 13 in
Unit pack/end user
1 pc
Delivery content
UI 770 Interface box
1.5 volt C-size battery (IEC LR 14 C)
Phone connecting cable: 4/4 modular plug (RJ9)
Modular to easy disconnect cable (headset bottom cable)
Instruction manual
Product Information
Universal Interface UI 770
The UI 770 is the ideal universal wideband
Interface box which allows the user to
connect a PC, standard phone, handset, a
headset of the Sennheiser contact center
or office series and even a dictaphone for
voice recording.
With the UI 770 you can easily switch
between the headset, handset and PC,
adjust the volume of the headset speaker
and mute the headset microphone.
The UI 770 supports the possibility of
limiting the Speaker volume by simply
setting a switch. This secures compliance
with the Noise of work Directive from EU
(EU Directive 2003/10/EC) and will result in a
reduced maximum output level for the user.
Benefits and Features:
Dynamic Volume control™ keeps incoming
calls at the same sound level and prevents
sudden noises
Sound clarity system™ reduces background
noise and enhances the caller’s voice
Compatible with both wideband and
narrowband headsets and phone systems
Easy switching option between handset and
handset as well as between phone and PC use
Integrated dictaphone interface for
economical and easy call recording
Compliance with the EU Noise at work
Directive with a single switch
Automatic power save function for out-
standing battery lifetime of up to 1 year
Peace of mind - 2-year international warranty
