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E. DETAILED SPECIFICATIONS OF WT88
other important information to know about!
Battery Problems & Replacement.
Technical Specifications
Please read the following safety instructions before using your wireless headset.
WARNINGS
Operating and storage temperature is 10°C to 40°C
Users should NOT replace any part or component of the WT88 wireless headset and base station, except for the
battery pack. When replacing the rechargeable batteries, only use WT88 replacement batteries, and seek advice from
your dealers before purchasing and installing.
Do not open or mutilate the battery. There may be corrosive material which can cause damage to eye or skin and may
be toxic if swallowed.
Do not dispose the headset or battery in a fire. The battery cells may explode. Check local laws for disposal
instructions.
Do not use liquid cleanser or aerosol cleanser as they may damage the device or finish of the product. Use a dry cloth
to clean the external portions of the product.
Prevent the headset from coming into contact with moisture or liquid, to protect against damage to it or injury to you.
To reduce the risk of electric shock, explosion or fire, use only the supplied power adaptor to charge the device.
Ensure that the voltage rating (e.g. 230V 50Hz) corresponds to the local mains or power supply you intend to use.
Do not disassemble the AC adaptor as this may expose you to dangerous voltages or other risks. Incorrect
reassembly can cause electric shock or fire when the product is subsequently used.
RECYCLING
The battery used in your headset must be recycled or disposed properly. Contact your local recycling center for
proper disposal.
WARRANTY
Do not remove or alter any serial number print or sticker on any part of the device, as this will automatically void the
product’s warranty.
Conformities & Standards
REFERENCE SPECIFICATIONS
Designed to conform to RF regulations FCC PART 15
FCC id: RNDDA579B
Conform to CE requirements
Designed to conform to SAFETY REGULATIONS
Power Adaptor: 9V DC 500mA Class 2 transformer wall adaptor (CE, TUV)
Headset volume control range: minimum 13dB
Frequency Bandwidth
: 2403 ~ 2475MHz Bandwidth
Number of Channel
: 40 Channels
Channel Space
: 1.8Hz
Speech Coder
: 32kb/s ADPCM with parity
Type of RF Modulation
: DBPSK modulation/demodulation
Processing Gain
: 11dB
Data Rate
: 80kb/s time division duplex
Frame Rate
: 1ms transmit / 1ms receive
Sampling Rate
: 1.92M samples/s (2 samples/chip)
Transmission Power Levels
(RF Output Terminal Contact)
- headset
: 0dBm
- base station
: 0dBm, -10dBm, -20dBm
Receiver Sensitivity
: -102dBm, -82dBm
Additional Security
: 16 million security codes
Standby Time
: 14 days
Talk Time
: 5 hours
Battery Capacity
: 3.7 V DC/ 550mAh
General Specifications
RF Specifications
Power line conducted emissions:
SECTION 15.207
PASSED
(Class B Requirement)
Bandwidth (700KHz > 500KHz):
SECTION 15.247(a)
PASSED
Power Output:
SECTION 15.247(b)
PASSED
Spurious Emissions (Conducted):
SECTION 15.247(c)
PASSED
at band edges: 25.3dBc < 20dBc
Spurious Emissions (Radiated):
SECTION 15.247(c)
PASSED
per second 15.209(30-960MHz) up to 10th Harmonics
Power Spectral Density:
SECTION 15.247(d)
PASSED
(5.47dBm < 8dBm)
Processing Gain:
SECTION 15.247(e)
PASSED
(11.2dB > 10dB)
WT88 Wireless Telephone Headset
INSTALLATION GUIDE & USER MANUAL.
13
14
Safety & Warnings
troubleshooting your headset battery
If any of the following conditions occur in your headset, you should replace your battery
as soon as possible:
Battery runs out quickly after each recharge, significantly less than 5 hours talk time.
Power of the headset suddenly dies, but after switching the power off and on, the
headset becomes operational again, even after extended period of recharging.
When placed on stand-by the headset power runs out in less than one day.
The headset has no response whatsoever, no LED-indication at all.
replacing your headset battery
Remove the two screws on the back-side of
the Battery Pack (11), with a small Philips
screwdriver.
Carefully open up the cover, take out the
battery as illustrated. Notice there is a sticker
with (+) sign indicating the direction to where
the battery should be inserted.
11
Replace the new battery with the (+) sticker
matching the (+) mark etched on the battery
holder. Make sure the two springs are touching
the two metal contacts on the battery.
Close the cover from the top to the bottom
arc, fasten the screws to complete.
If you are uncertain about how to replace the battery, please
bring the product back to your dealer for assistance.
Only Use Batteries
supplied by Accutone
