- Talk time: 17 hours (NB), 12 hours (WB)- Idle time: 200 hours- Full lines: 2 lines (SIP registrations)- Handsets are Hearing-Aid-Compatible (HAC) and meet Federal Communications Commission (FCC) loudness requirements for the Americans with Disabilities Act (ADA)- Bluetooth LE 4.1- Volume-control toggle provides easy decibel-level adjustments of the handset, monitor speaker, and ringer- Full-duplex speakerphone- Battery type: rechargeable Lithium Ion - Charging cradle ( 5V, 2A) comes with a USB Type-A connector- Cradle charging time: 6 hours- Wall-mountable