Details -
Headphone:
Bluetooth version: BT5.0
Bluetooth profiles: HSP v1.2, HFP v1.6, AVRCP v1.0, A2DP v1.0
Audio codec support: FastStream, SBC
Operating range: Class 2, up to 30 ft/10m
Operating time: up to 35 hours play time
Net weight: 234g
Earpad inner size: 55±1.5 * 43±1.5 * 15±1.5mm

Transmitter:
Bluetooth version: BT5.0
Bluetooth profiles: HFP v1.7, AVRCP v1.5, A2DP v1.3
Audio codec support: aptX-LL, aptX, FastStream, SBC
Operating range: Class 1, up to 100ft/30m
Net weight: 135g
Size: 160*94.8*47.4mm