Bluetooth connection. Compact mono-auricular . Enhanced low-power connectivity allows pairing with multiple devices with a stable wireless range of up to 10 m. Convenient charging base keeps the headset ready for use, with about 2 hours for a full charge. Up to 14 hours of talk time and 200 hours on standby with a 180 mAh lithium polymer battery for all-day use. Lightweight 0.11 lb construction with an ear cushion for extended wear during long workdays.