

Good thing is it does reconnect after being put into sleep and waken up.

It's usable, but still lags/skips quite often. Most of the Bluetooth 4.0 adapters available on the market is using this CSR chipset. This is the next chipset I tested after the Baseus BA07. Occasional (~once every 7 minutes) ~20 second skip & lag. Lag/Skip: ⚠️ Acceptable most of the time, with a slight (but noticable), almost constant lag. Driver: Microsoft Generic Bluetooth Radio 1.1682 (same as windows version.), released 1 (doubt it.), firmware version HCL6.8891/LMP6.8891(Note: Do NOT install the CSR Harmony Wireless Software Stack! Your adapter will be recognized as a CSR Bluecore Device and no longer provide bluetooth functionality.).

Tested products(6): UGREEN Bluetooth 4.0 Adapter, Orico Bluetooth 4.0 Adapter, Baseus 4.0 Adapter, random cheapo*3 (Almost 90% of bluetooth 4.0 adapters on the market uses CSR8510, and even uses the same circuit board design.). Chipset: Qualcomm CSR8510 (Bluetooth 4.0).
