3nStar SC440 - 2.3 Voice Setting Options; 2.4 Voice Frequency Configuration; 2.5 Battery Status Monitoring

(1) USB/2.4G/Bluetooth is disconnected;
(2) Data upload unsuccessfully or the storage Flash is full;
(3) Setting code failed;
Three short tones with high and low rhythm --> Status:
Insufficient power, ready to enter off state;
2.3 Voice Setting
Sound Volume
Off High(*)
Medium Low
Sound Type
MCU(*) Scan Head
2.4 Voice Frequency
2048HZ 2700HZ
2.5 Battery Function
Battery Indicator