XM905 Multifunctional Voice-activated Alarm Clock LED Electronic Wall Clock (Black) Wireless Presenter Alarm distance: 0m--2

Alarm distance: 0m--2

stereo surround recording

This battery master switch can safely disconnect the battery

ORP: +/-5mv

second gear: 400mA

XM905 Multifunctional Voice-activated Alarm Clock LED Electronic Wall Clock (Black) Wireless Presenter Alarm distance: 0m--21. Turn on the backlight sound control, press and hold the button on the top of the alarm clock to set the backlight sound control on or off. 2. Three level backlight adjustment function to meet different needs. 3. Memory function: open the battery cover, you can see two button batteries, the battery is a memory function (When the clock has no power, the clock will continue to work, but there will be no display on the screen. After power on, the clock