Wireless Earphones A4tech B20, 13 mm driver, 32 Ohm, 102db, Bluettoth 5.2, 40/380 mAh,IPX4, White
Wireless Earphones A4tech B20, 13 mm driver, 32 Ohm, 102db, Bluettoth 5.2, 40/380 mAh,IPX4, White
47900
145853
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. Bluetooth v5.2 Wireless Earphone Hybrid Diaphragm Φ13 mm Speaker Unit Wireless Transmission Independently Half-in-Ear ErgoFit Style Transparent Case Cover Water Resistant IPX4 Automatic Connects Voice Assistant Support Extended Playtime 20H + Speed Charge USB Type-C Rechargeable Frequency Response 20 Hz - 20 kHz Earphone Sensitivity 102 dB @ -10 dB Mic. Sensitivity -42 dB @1 kHz Earphone Impedance 32 ohm Operation Distance 10 m Earphone Battery Type Lithium Battery (40 mAh) Charging Case Battery Type Lithium Battery (380 mAh) Charging Power 5V=500mA Earphone Charging Time ＜1.5H Case Charging Time ＜1.5H Music Playtime with Single Charge ≈5H Weight 39 g
Audio Connectors
USB Type-C
Battery Capacity {mAh}
380
Battery Chemistry
Lithium
Bluetooth Compliance
5.2
Brand
A4Tech
Built-in Microphone
Yes
Charging Case
Yes
Charging Connector Type
USB Type-C
Charging Time {hours}
1.5
Classification | Headphones
Mobile Entertainment Headsets
Colour Category | Цветовая Категория
White | Белый
Colour Name | Название Расцветки
Grayish White
Connection Type
Bluetooth
Control Buttons
Previous/ next song, receive/ end calls, enter voice assistant
Dimensions
52 x 63 x 26 mm
Drivers Type
Dynamic
Headphones Design Type
True Wireless
Impedance {Ohm}
32
LED Indicator
Yes
Materials
Silicone
Max. Frequency Response {Hz}
20000
Max. Wireless Range {m}
10
Mic. Frequency Response
100 - 1000 Hz
Microphone Design (Headset)
Integrated Microphone
Min. Frequency Response {Hz}
20
PlaybackTime {hours}
20
Protection Rating (IP Code)
IPX4
Sensitivity Rating {dB SPL/mW}
102
Touch Controls
Yes
Type | Audio-Video
Headphones
Voice Assistant
Yes
Weight {g}
39
Wireless Charging
Yes
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