Sandberg Bluetooth Earset Business Pro

Bluetooth 5.0 Qualcomm QCC3020 chipset
Dual noise reduction mic
Frequency range: 2.4 GHz-2.4835 GHz
Multiple-points technology for Dual Device connection
Supports A2DP, AVRCP, HFP, HSP, AAC
Up to 30 metres wireless range
Speaker frequency: 20Hz – 20KHz
Speaker Sensitivity: 118dB ± 3dB
Microphone sensitivity: -38dB ± 3dB
Vol +/- buttons, Mute button
Charge base with 4 buttons
Talking time: Approx. 60 hours
Charging base battery: 500 mAh
Earbud battery: 50 mAh