There is no Jewish tradition of using beads while praying so no, prayer beads are not Jewish.
There's no such thing as Jewish prayer beads. Prayer beads are used by Hindus, some Christians, Buddhists, Muslims, Sikhs and Bahai.
Muslim beads or sometimes called Dhikr Beads are helpful in remembring that how many times have you performed Dhikr.
A Jewish house of worship is called a synagogue. Jews often pray at home, as well.
in Hebrew
If you are Christian, you pray before bedtime. If you are Jewish, you do not pray at all.
To tell the beads is to pray with a rosary ( a string of beads used in praying).Dictionary.com definition:bead  [beed]count / say / tell one's beads, to say one's prayers, using rosary beads: There were a few old women counting their beads in the hushed silence of the chapel.
They pray separately in the synagogue.
If you mean pray, we pray in the synagogue.
There are no beads on a Tallit or Jewish prayer shawl. There are knots and strings called Tzitzit on each corner that represent the 613 commandments found in the Torah.
they pray and sing
Jewish people only pray to G-d.
What do Jewish use to play or to pray? If you are speaking of playing, it is very common for Jewish children to play with the driedel. If you are speaking of praying, they usually pray in temples.