What are the Bluetooth specifications of the Xiaomi Buds 5?

The Bluetooth chip model of the Xiaomi Buds 5 is Qualcomm QCC3081. The Bluetooth version is 5.4. The communication range can be up to 10m, which is measured in an open space that is free of obstacles. The Bluetooth protocols are Bluetooth® Low Energy, HFP, A2DP, and AVRCP. The Bluetooth audio codec includes SBC, AAC, aptX, aptX Adaptive (Lossless), and LC3.
Note:
If you are in the office or at home, the effective range will be reduced due to walls or other obstacles. Therefore, if you put your phone in the living room and bring the earbuds to the bedroom, the earbuds will freeze or the Bluetooth connection will be disconnected.