высокое качество bluetooth гарнитура беспроводная гарнитура с сенсорным управлением siri вызов bluetooth изменение названия в ухе обнаружени

order more than 10 pcs, we will ship out via dhl bluetooth version: 5.0 transmission distance: outdoor linear distance is 10-18 meters battery capacity: lithium polymer battery 55mah battery capacity :400mah of charging box listening time: 4.5 hours talk time: 5 hours standby time: 130 hours charging time: 50 minutes operating current: 10-12ma standby current: 4ua