Безжични слушалки Xiaomi. Ползвани са само веднъж за проба, но неми допаднаха. Спецификацията е по долу на английски, ако имате въпроси , може да ми пишете. Цена 8лв.

Xiaomi Bone Conduction Bluetooth
Headset

Specification:
Charging Compartment Battery Capacity:400mAh
Transmission Distance: Up to 10 meters / 33 feet
Speak Unit: 13 mm
Battery capacity: 50mAh
Usage Time:About 5 hours(Earphones) one time
Charging Time: About 1 hour(Earphones)
Frequency Range: 2.402-2.485KHz
Bluetooth Version: V5.3
Features:
1, Latest design earphones.
2, Music/Game dual mode,sound quality synchronization and low
latency
3, Bluetooth V5.3, support most of Bluetooth devices and lower
power consumption
4, ENC call noise reduction effectively suppress environmental
noise.
5, Single and binaural use independently,regardless of
master-slave switch arbitrarily