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Specification :
Model
WT-640T WT-640R
Transmit type
Digital transmit
Wave band
In 500~928MHz range selectable
Default frequency number
Around 100(UHF channel ) adjustable
(Around 10-25 frequency could use at same location.)
RF output power
10 dBm
--
Sensitivity
-115 dBm
Deviation
+/-100k
Distance
150 m (Open ground/without interference)
Control
Power switcher on/off,
channel select, volume
setting, button lock,
volume mute.
Power switcher on/off,
channel select, volume
setting, button lock, SQL
function, automatic frequency
corresponding.
S/N ratio
>60 dB
Frequency Response
20~16,000 Hz
Input/Output
3.5mm(1/8”) microphone
input *1
、
3.5mm(1/8”)
audio source input*1,
support audio mixed
3.5mm(1/8”) earphone/
normal audio output
Battery life
17 hours
（
Average
）
24
hours
（
Average
）
Battery type
DC 3.7V 1200mAh
rechargeable build-in lithium battery
Recharge
Two charging way: mini USB port or contact point
charging. Support charging single devices individually or
charging in the charging storage case.
Dimension
72mm x 52mm x 16mm
Weight
70 g(Including lithium
battery)
65 g (Including lithium
battery)
