M99 Bluetooth Headset V5.2 Version Long Standby Time Hanging Ear In-Ear Large Battery V9 Upgrade Version Business Model
Parameters: (buy two can be used as a pair)
Bluetooth version: V5.2+EDR
Distance: 10 meters
Talk time: about 100 hours
Listening time: about 88 hours
Headphone battery: 350MAH
Wireless frequency: 2.4GHZ
Supported protocols: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3
Transmission distance: 10 meters
Charging voltage/current: 5V/1A
Charging time: about 2 hours
Standby time: 2220 hours
Speaker impedance: φ8MM 32&;
Microphone sensitivity: -42Db
Working temperature: -10-50℃
Package size: 14.3*9*2.5CM
Headphone size: 7.4*6*2.2CM
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