1, headphone parameters<br>Bluetooth version: V5.0 plus EDR<br>Wireless frequency: 2.4GHZ<br>Support Protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3<br>Distance: 10m<br>Battery capacity: 50mAh<br>Charging voltage/current: 5V/1A<br>Play/Talk Time: About 4 hours<br>Charging time: about 1 hour<br>Standby time: 120 hours<br>Horn impedance: 8MM 32 s<br>Head Sensitivity:-42Db<br>Operating temperature: -10-50C<br>Gross weight: 4 g x 2<br> <br>2, charging warehouse parameters<br>Input voltage/current: 5V/1A<br>Battery capacity: 1500mAh,<br>Gross weight: 132g<br> 4, product list<br>Headphones, charging compartments, charging cables, ear caps, instructions, 1<br>Package size: 15 x 8 x 4CM
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