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-Model number: A770BL
– Bluetooth version: 5.0
– Battery capacity: 250mAh
– Standby time: up to 25h
– Talking time: up to 10h
– Playing time: up to 13h
– Charging time: 1h
– Transmission distance: up to 10m
– Frequency response: 20-20kHz
– Connectivity: Bluetooth, 3,5mm aux-in
Article name: wired headphone
Material: plastic, metal
Speaker diameter: 40mm
Sensitivity: 115db
Impedance: 32
Frequency response range: 20hz-20khz
Microphone: 6.0 x 5.0mm
Plug: 3.5mm
Microphone impedance: 2.2k
Features: wired, noise reduction, comfortable to wear
Cable length: 1.20.3m/47.24 inches 11.81 inches (approx. )
Size: 14.5 cm x 12 cm x 6 cm/5.71 inches x 4.72 inches x 2.36 inches (approx.)
Color: brown, silver white, light blue, black, red
Bluetooth version: 5.0
Operation Distance: 10m.
Color: brown, silver white, light blue, black, red (Optional)
Support: adjust the volume, switch songs, insert cards, answer calls, call rejection, hang up, hands-free
USB charging cable: AC input 110-240 V DC input 5 V
Standby time: 120 hours Working time: 4-5 hours
Charging time: 2 hours
Battery: 150mAh rechargeable polymer battery
Wireless version: V5.0
Working distance: Up to 10m
Impedance: 32Ω±15%
Driver: 40mm
Frequency: 2.4GHz-2.4835Ghz
Battery: 300mAh, Rechargeable
Play time: About 15 hours
Standby time: Up to 100 hours
Non-replaceable lithium ion-polymer
Power requirement: DC 5V 1A
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