斯里兰卡采购需求：4 英寸热敏打印机、无墨热敏打印机、热敏标签条码打印机、110 毫米热敏标签打印机、热敏运输标签打印机、热敏标签贴纸打印机

I recently purchased a Bluetooth model and am experiencing some difficulties connecting it to my computer. I've attempted several troubleshooting steps, but I still can't get the Bluetooth feature to work properly. It would be great if you could provide some guidance or steps I could follow to resolve this issue. Additionally, I would like to know which app I should use to print from my Android phone via Bluetooth. Any recommendations or specific instructions on how to set this up would be very helpful. Looking forward to your assistance on these matters. Thank you!