Mini Bluetooth Headset Wireless Invisible Earbuds

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Product information: Transmission range: 1-10 meters Function: Battery display, voice control, call function, support music, NFC function Bluetooth protocol: 4.1 Channel: Mono How to use: Earplug style Whether single or double ears: Unilateral hands-free Features: 1. Bluetooth version: V4.2+EDR 2. Transmission power: Class2 3. Wireless frequency: 2.4-2.48GHz 4. Transmission distance: 10 meters 5. Charging time: 1 hour (charging voltage 3.7V) 6. Talking/listening to music time: 2 hours (100 hours standby) 7. Applicable models are suitable for all mobile phones with Bluetooth function Show more