I'm using this ENO EMT-700A.
I'm not sure what on earth this is. Maybe I do. It's a tuner/metronome. My guitarists force me to buy because they say I always play either too fast or too slow. It's quite good because you can adjust the tempo 1 by 1. Some metronome can only be adjusted 5 by 5 tempo. Best deal. I bought it for $23 at Ranking. It's at Bras Basah, in front of Swee Lee. If you want, come for the next meet-up, I can show you. haha.