Bluetooth 5.0, with support for A2DP 1.3, HFP 1.6, HSP 1.2, AVRCP 1.6, D11.3 • Wireless range: around 10 meters • Battery life: roughly 3–5 hours of playback or talk time • Charging case capacity: 350 mA • Operation: • Auto power-on and auto-pair when removed from the case • Device appears as “BTSX2” to pair with your phone   • Touch Controls: • Double-tap to answer or hang up calls • Double-tap again to pause/re-play music • Triple-tap left earbud: previous track • Triple-tap right earbud: next track • Long-press (~5 sec) to power off • Auto power-off if disconnected for over 5 minutes; waking back up with a ~2 sec touch  
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