Nice alarm tone:

1, Oops

Album: Glory Days: The Platinum Edition, singer: Little Mix; Charlie Puth

2. Simple but not Easy

"Simple but not Easy" is a popular song sung by RubberBand and belongs to the album "Easy".

3. Solstice

The singer is Machiavel and belongs to the album Live.

4. I'm Yours

"I'm Yours" is a single from the album "We Sing We Dance We Steal Things" by American folk singer Jason Mraz. Released by Atlantic on May 13, 2008.

5. Morning (Instrumental Mix)

"Morning" is a song sung by West and Liu Er, which is included in the album "China Hip-Hop Chart".

6. Rainbow

Rainbow is the theme song of "My Little Pony: The Movie" and the singer is Sia.

7. Heartbeat

"Heartbeat" is a song written, composed and sung by Wang Shi'an. It is included in Wang Shi'an's EP "DIANA WANG" released on December 10, 2016.

Selection of alarm clocks:

(1) First check the appearance: the color of the clock case is bright and even, with no paint peeling, discoloration or scratches. The clock face should be clean, the scales should be even, and the writing should be clear.

(2) Check the sensitivity: Turn on the spring slightly, and the second hand will start to move, which proves the sensitivity is high. A clock with high sensitivity will keep time for a longer time.

(3) Check the sound of the clock: Place the clock face left, right, front, back and up and down. If the sound is consistent in all directions and has no noise, it means the clock is running normally.

(4) Check whether the hands touch: Turn the hour and minute hands so that the hour and minute hands overlap with the second hand (the three hands overlap). There should be a certain gap between the three hands and no rubbing is allowed. At the same time, there should also be an appropriate gap between the needle and the clock face and glass.

(5) Check the alarm: Set the alarm point to positions 3, 6, 9, and 12 respectively, and then move the hour and minute hands to these positions. If the alarm error is within 5 minutes, It's normal to have trouble.

(6) Check the alarm sound; the alarm sound should be clear and loud, with no mute or empty sound.

(7) Check the tightness of the needle and alarm keys: the tightness should be moderate. If the needle key is loose, it means that the compression spring on the center wheel has insufficient elasticity, which will cause the second hand to move but the hour and minute hands not to move or to move slowly. If the alarm key is loosened, the alarm dial will rotate with the hour and minute hands. But if they are too tight, it will be inconvenient to use.

Reference material: alarm clock_Baidu Encyclopedia