(1),Random:This mode allows any input code.

(2),Selection:This mode can select a random combination of letters or numbers that you want to practice.

(3),Follow:This mode allows you to choose any letter or number to follow the machine to practice the code.

(4),Short Code:This mode allows you to practice digital shortcodes.

(5),Q Codes:This mode allows you to practice common Q statements and acronyms.

(6),Listening:This mode can select letters or numbers to practice listening codes.

(7),Query:This mode can query the code and click Play.

(8),System:You can adjust the volume, tone and other parameters.

(9),Code Game:Eliminate more codes over a period of time.

(10),Listening Game:Tap the screen when you hear the code.

(11),Memory:A set of random codes is first broadcast and entered using the keys.

(12),Intercom:The extension port external talkies transmit the code.

Hardware	Parameter
Screen	4.3 inch capacitive touch  800*480 resolution
CPU	32 Bit ARM
Battery	2200mah
Size	125mm*72mm*30mm
Weight	340g
Continuous Working Time	About 4 Hours
Battery Charging	USB-5V
Interface	3.5mm- key*1 3.5mm- Ext-interface*1 3.5mm- Phone*1     Type-C*1