What is a good remote control vibrator/ egg

I have bought a couple of vibrating eggs with remote control

Unfortunatly the range is so short they are pretty useless.

I am hoping to get my hubby interested by giving him the remote as we walk out the door on an evening out.

I am on a tight budget. ( max £30) am I on a loser with this one or are there affordable remote control toys out there that are accually do what it says.

I have several, the one made by Hyman works best. I bought it on eBay. Being Blue Tooth the range will be limited.