KA2000E – 带 3.5mm 插孔的声管式耳机，仅供聆听。
适用机型：TK208 | TK220 | TK240 | TK240D | TK248 | TK250 | TK260 | TK260G | TK270 | TK272 | TK308 | TK320 | TK340 | TK348 | TK350 | TK353 | TK360 | TK361 | TK370 | TK2100 | TK2102 | TK2202 | TK2130 | TK2160 | TK2200 | TK2207 | TK3100 | TK3101 | TK3102 | TK3130 | TK3131 | TK3160 | TK3170 | TK3200 | TK3201 | (Pro Talk XLS) | TH-22AT | TH-25 | TH-26 | TH-27A | TH-28A | TH-42AT | TH-45 | TH-55 | TH-75 |科立讯3208-S |海能达TC365。