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4 generation Bluetooth headset low configuration version Pro4

1. Earphone parameters

function parameters: rename positioning + pop-up window three true power display

bluetooth version: V5.1 + EDR (Jerry 6963) copper ring speaker
wireless frequency: 2.4GHz
supported protocols: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3
transmission Distance: 15 meters
headphone battery capacity: 30Mah
fixed Charger Battery capacity: 260 mAh
charging voltage/current: 5V/1A
playback/Talk time: about 3 hours
charging time: about 1 hour
standby time: 120 hours
speaker impedance: & phi;13MM 32Ω
microphone head sensitivity:-42Db
operating temperature:-10-50