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Trigiants Technology Co.,Ltd
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2/F,Building 2,Technology Innovation Centre,

Product details

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User Manual CK-W88  

Know Your Phone

Main points features: 

l 4 favorite one touch key l Smart SOS Emergency Call l Software phone off via SMS  l Speaker & Receiver mode l Voice out the time l Low SAR rating l Low battery alarm via SMS l Separate flashing to indicate callers' identity l Mechanical battery door lock, avoid drop the battery and sim card  

Power On / Off the phone 

Press and hold key 2 for 3s to switch on the phone.  Then SOS key will be blink per 5s , means the GSM network connection successful. Press and hold key1 and key2 for 3s to switch off the phone. 

Dial out (key 1 ~ key 4) 

Press once to release the key lock then press any outgoing preprogrammed key for 3s to dial out  

SOS Smart Emergency Call 

Max 4 preprogrammed numbers, press for 3s and auto dial in sequence until one pick up. 

Voice out the time 

Press the SOS key to voice the current time out, but should be set the time first with 24hrs format.  

Tone and Rings’volume adjustment  

Calls and rings in the process, press, 3rd or 4th keys to decrease or increase the voice volume and ringer volume.  

Handfree speaker and handset mode 

During a call, press the key 1 switch the phone in handfree and receiver mode. 


After installing the battery and plug the adaptor into the charging Jack on the bottom; While charging, there will be a blinking LED lamp law tips, The keypad LED blinking and 1-2-3-4 LED flashing in cycle till full charged.  

Receive incoming calls 

Press1 key all calls by answering, 2 key hangs up.    

To sets the one touch key pregrammed 4 favorite numbers . 

With any mobile phone send SMS to the unit with following format,to sets the favorite numbers. 

SMS eidt construction → F: serial number, name, number       

Serial number vaild No. from 1 to 4 matching key 1 ~ key4 one touch key         

Name & number means the 4 one touch No.s and its named.  

Exsample→ F:1, peter, 8267342 Explanation: 1st favorite number named Peter, phone number is 8267342 which is correspond to key 1 preset unmber. 

Set success will receive a feedback sms Tip: "family number 1 dad setting success!            

The others 2nd,3rd and 4th favorite number set process same as the 1st, pls refer to the above.(if change the favorite number,pls use and only the programmed favorite 1 or 2 number to reset, The process same as above)   Note:  Once the favorite numbers set up, Only the pragrammed favorite numbers 1 and 2 had authorized to remote set or change the setting of the phone via SMS. such as the SOS,favorite numbers change, time settings etc.   

Remote set the phone via SMS by favorite number 1or 2: (via sending SMS to the phone) 

1. Set the date time (24-hour clock. ) 

Use the programmed favorite 1 or 2 number phone create a SMS and send to the phone as below instruction:     SMS command construction→ time: year/ month/ date: hour/ minute/ second"   

Exsample→  Time:101203:120000 Explanation: this time setting at 12:00:00 of Dec.03, 2010. Set success Tip: " Time set successfully” Failed to set tip: "Setup failed, check the SMS command format! 

2. SOS smart emergency number change. 

The default SOS numbers as programmed 4 favorite numbers. Also its number can be changed to others but not favorite numbers.  Use the programmed favorite 1 or 2 number phone create a SMS and send to the phone as below instruction:  

SMS editing formats→ SOS: serial number, number     

Serial number vaild No. from 1 to 4 (means 1st ~ 4th SOS No.)     

number means the 4 SOS preset No.s. 

Exsample→ SOS:1,8976543 Explanation: the 1st SOS emergency number is 8976543 Set success Tip: "SOS no,1 set successfully "  Failed to set tip: "SOS no, set failed,pls check the SMS command format!  

The others 2nd,3rd and 4th SOS number change process same as the 1st, pls refer to the above.   

LED light pattern tips

Funtion description

LED tips 

Power on searching for networks

All keys light quickly flashes 

There is no GSM network signal

All lights flash 1sec /time 

GSM working 

SOS light 5 second/time 

Family numbers outgoing calls tips 

Key that corresponds to

the light quickly flashes until 

the call ends 

Family numbers incoming tips 

Key of corresponds to

the light quickly flashes 

Allowed incoming number calling tips 

All Keyboard light 2 second/time 

4 one touch family numbers calls missed tips 

Within 2mins, the correspond key 

light flash 2sec/ time 

After 2 minutes the key light 

flash 10 sec/time 

SOS emergency tips 

SOS light flashing fast 

charging tips 

Key 1-2-4

3 lights flash in sequence 

till full charging. 

Full charged lights off 

Are collecting location data 

Key1 – SOS –4 lights

flashing in sequence. 

Sound tips

Function description

Corresponding sound 

Low battery sound tips

"AO"  sound per 2mins

When you press any not preset No.key



Disable switch on the phone

Confirm that the battery is good

May be low on battery power, 

please recharge or replace the battery 

Not receive the legitimate number of telephone calls

Class silent activated, 

please check and change the setting

May be a weak signal, set the phone to a strong place 

Confirm that the caller is added and allowed. 

The other party cannot hear you say

Pls check if the phone out of 

range of GSM network coverage,

pls put the phone to a strong signal place. 

Guardian phone sending remote command not successful 

Make sure the guardian phone 

has been set for G:1 or G:2 No.s 

Please check the SMS command text 

message is properly formatted 

When poor network conditions, SMS sending is not received  

Abnormal operation or failure of the phone 

Remove the battery,

put the battery on 

after a few minutes and switch on the phone. 

Query child location information always displays unknown area 

Make sure that the phone made date collection of the regions 

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