Bluetooth Solution: Jerry 6973D4

Version: V5.4

Supported Bluetooth Profiles: HFP, HSP, A2DP, AVRCP

Bluetooth Operating Frequency: 2.402GHz-2483.5MHz

Receiver Sensitivity (TYP): ≤-86dBm

Bluetooth Effective Range: ≤10 meters (visible distance)

Frequency Response: 50Hz-10kHz

Speaker Unit: Ø6mm @ 16ohm

Microphone:  MIC -42dB +-3

Built-in Battery: Earphones (28mA) ;Charging Case(200mAh)

Music Time: About 4 hours (70% volume)

Talk Time: About 4 hours (70% volume)

Charging Time: Earphone(1.5 hours) ; Charging Case (1.5hours)

Standby time: >4 months on a full charge