Ausinės A4Tech Belaidės ausinės B20, TWS, Bluetooth, pilka

TWS headphones designed for comfortable listening to music in leisure or sports
2Drumtek hybrid diaphragm sound technology ensures crisp highs and mids with deep bass
Integrated microphone in both headphones
Omnidirectional microphone characteristic guaranteeing perfect voice transmission
Quick pairing: automatic connection to the device after the first pairing
Support for Siri, Amazon Alexa and Google Assistant voice assistants
The headphones can be used as a pair or separately
Answer calls with one or both headphones
Touch sensor at the top of each earpiece
Touch control of the headphones allows you to:
- long hold on the right earpiece (2s): volume up/reject call
- long hold on the left earpiece (2s): volume down/reject call
- one tap: start playback/receive call
- double tap on the right handset: previous track
- double tap on left handset: next track
- triple tap: activate voice assistant
Charging case LED indication:
- Red LED: battery capacity status 0-30%
- Yellow LED: battery capacity status 30-70%
- Green LED: battery capacity status 70-100%
Headphone LED indication:
- red + blue LED flashing: pairing
- no LED on: connected
Voice alert "Battery low" if battery capacity drops below 15%
Bluetooth version: 5.2
Bluetooth name: 2Drumtek B20
Operating distance: 10 m
Headphone transducer size: 13 mm
Headphone frequency range: 20 Hz - 20,000 Hz
Headphone impedance: 32 Ohm
Headphone sensitivity: 102 dB
Microphone frequency range: 100 Hz - 10 000 Hz
Microphone sensitivity: -42 dB
Music playback time per charge: 5 hours (50% volume)
Playback time using the charging case: 20 hours (50% volume)
Degree of protection: IPx4
Universal compatibility:
- Desktops and laptops
- Gaming consoles
- Mobile phones and tablets
Automatic charging of the headphones when inserted into the charging case
Headphone battery capacity: 40 mAh
Charging case battery capacity: 380 mAh
Audio codecs: SBC, AAC
USB-A charging cable ? USB-C (Type C) included
Charging cable length: 20 cm
Power supply: 5.0 V, 0.5 A
Headphone charging time: 1.5 h
Charging time of charging case: 1.5 h
Headphone dimensions (W × D × H): 20 × 6 × 34 mm
Charging case dimensions (W × D × H): 63 × 26 × 52 mm
Headphone weight: 4 g
Weight of charging case: 39 g

Package contents:
Headphones
Charging case
Charging cable
Instruction Manual (CZ, SK)

Product pages:

https://www.a4tech.com/product.aspx?id=312