PLANTRONICS BACKBEAT PRO 5100 TRUE WIRELESS BLUETOOTH EARBUDS BLACK

Listen/talk/standby time:  Up to 6.5 hours listen time, Up to 4 hours talk time
Roaming range:   Up to 33 feet/10 meters
Battery capacity:   60 mAh (earbuds), 440 mAh (charging case)
Battery type:   Rechargeable, non-replaceable lithium ion polymer
Charge time:   Up to 2 hours for full charge, Up to 3 hours for full charge of earbuds and charging case
Quick charge:   Up to 1 hour of listening with a 10-minute quick charge
Bluetooth technology:   Bluetooth 5.0, Hands-Free Profile HFP 1.7
Audio profiles:   A2DP 1.3.1, AVRCP 1.6
Receive frequency response:   20 – 20,000 Hz
Microphone and technology:   Four microphones noise-canceling digital signal processing (DSP)
Speaker driver size:   5.8 mm
Moisture protection:   Sweat-resistant and IPX4 water-resistant
Weight:   5.8 g (each earbud), 38.6 g (charging case without earbuds)
Call controls:   Call answer/end, mute, volume +/-
Media controls:   Play, pause, track forward/back, activate virtual personal asisstant
Voice and other alerts:  Enhanced voice alerts announce talk time remaining, and connection status.
Applications supported:   BackBeat app on iOS and Android