A:AnswerWhy not? Typing in 3 digit number (or 4 digit number) works fine for me. There is a ~1second delay after I am done entering, then the channel changes. If I want to enter 500, but pause too long after 50, it will go to 50. However, if I enter 500 without pause, it takes me to 500. The pause isn't some hair-trigger period... it is plenty of ti,e to get to next number.
A:AnswerThe 659 is no longer sold by Logitech - the only place you'd find it is via ebay or Craigslist. However, the 700 is a more than capable replacement
A:AnswerIf it's an infrared remote, YES. In case your remote or Karaoke unit is not the Harmony database, you can train the Harmony 700 remote to mimic your Karaoke remote.
A:AnswerThis remote has thousands of or codes and I'm pretty sure that it can work for you. If for whatever reason it does not this remote has a learn function that you can use your old remote to learn its functions and program them. I've had to use this function a couple of times myself. I wouldn't hesitate in buying this remote. You'll be glad you did.
A:AnswerIt's a standard micro charger. Same as for android devices. One end is USB to plug into a charger, like a wall charger or a USB hub, the other end is the micro usb type that goes into the front of the remote. I use the same charger for my phone and tablet.