Feature Typical Specification
Bluetooth Version 5.0 (Classic + Low Energy)
Backward Compatibility 2.x / 3.x / 4.x
Interface USB 2.0 (USB‐A)
Data Rate ~3 Mbps (some audio-specific ~2 Mbps)
Wireless Range 10–20 m (up to 30–40 m in select models)
Power Class Class 2
Supported Profiles HFP, HSP, A2DP, AVRCP, HID, SPP, GATT, etc.
Audio Codecs (optional) SBC, aptX, aptX‐LL
LED Indicator Usually present
Dimensions & Weight ~20–30 mm, ~2–5 g
OS Compatibility Windows 7–11 (most); some plug-and-play