Description : 
    MS233 is designed for Toy Mobile Phone IC. Each Toy Mobile Phone can talk with others about 30m~100m distance (Depend on RF module)
        
        ■ 15 Operation Keys
        ■ 2 LED Indicators / Backlight
        ■ Interface with 2.4GHz RF Module
        ■ Voice Talking with 14bit Sound Quality. 
        ■ Incoming Call Ring Tone
        ■ 3 Digits Phone Number
        ■ Volume Adjustment

Function :  
        ■ perating Voltage:2.6V ~ 4.5V
        ■ Interface with 2.4GHz RF Module.
        ■ 14bit high Quality Audio ADC input,14bit DAC output
        ■ 3 Levels Digital Volume
        ■ 3 Digit Phone Number : 
            can be set a any 3 digits phone number for identify.
        
        ■ 15 Operation Keys : 
            ■ DIGIT KEY 0-9
            ■ TALK : 
                ■ Dial out a phone Call after press 3 digits 
                ■ Pick up incoming call 
            ■ HANGUP: Disconnect a Call
            ■ ON / OFF:Press Once to switch ON, Hold 3s to switch OFF.
            ■ VOL UP : Press Once to increase one volume level
            ■ VOL DOWN : Press Once to decrease one volume level
        
        ■ Incoming Call Ring Tone support
        ■ Key Tone support
        ■ Auto Sleep support
        ■ LED indicator : 
            ■ LEDB:ON during Talking.
            ■ LEDL:Flash on Incoming Call.