Shenzhen LongXiang Intelligent Technology Co. Ltd. WXM02 - Wireless Rechargeable Receiver 160 ft Range

desertcart.com: Bietrun Wireless Microphone Dynamic Mic System with Rechargeable Receiver, 1/4" Output, for Karaoke, Church, Speech, Wedding, Party Singing(160 ft Range)-Auto Connect Review: Good quality! - Good value for the money! Review: Receiver failed after only 4 months - read how to salvage it if you are DIY person - These microphones worked nicely in our karaoke setup until one day the receiver would not power on. This seems to be a common problem based on other reviews. Really a shame to throw away two perfectly working microphones because of the receiver so I opened it up and quickly learned the little LiPo battery inside was dead. Tried temporarily connecting a healthy battery in its place and discovered the charging circuit was bad (no current supplied to the battery when 5V USB connected). I managed to save it from the trash can by wiring up an external battery holder for an 18650 cell and powering it that way. Just have to pop the cell out when we aren't using it because there is a parasitic draw that will drain it otherwise. UPDATE: I contacted the manufacturer about the problem, and after sending pictures showing that the receiver will not charge, they sent a replacement under warranty, and I received it in less than a week despite it being right around the Christmas rush. I'm impressed by their prompt response. I plan to use it and just keep my crudely repaired one as a backup.