1. Bluetooth version: V5.0 (JL 6973) 2. Transmission power : Class2 3. Wireless frequency : 2.4-2.48GHz 4. Transmission distance : 10 meters 5. Charging time: 1 hour (charging voltage: 5V) 6.Talking/listening time: 4-5 hours 7. Supports high quality music stereo playback 8. distance: 10MM 9. Applicable to all mobile phones with bluetooth function 10. Charging box ：400 mah 11.Earphone battery 100 mah
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