Hey guys gonna be diying some jdslabs cmoybb's. They will be ready after the cny holiday. There will be warranty of course for 6 months subject to the terms stated in warranty card. here are the options: dual or single battery, Gain 3 or Gain 6. Also If you would like extra opamps I can provide them. The stock opamp of the cmoy is OPA2227. SMS me at 94500097 for more info and also to confirm your pricing.