TP-Link 15RTC - Manual (Page 18)

2. Language
Press the up(▲) / down(▼) button to select the Language menu.
Press the right(▶) or ENTER button.
Press the up(▲) / down(▼) button to select language.
Press the MENU button to save.
17 …………………………………………………………………………… INSTRUCTION MANUAL