tws headphones bluetooth 5.0 wireless earphones sports earphone 3d stereo sound earbud with portable mic and charging box

bluetooth name.dt-1.product information.1. bluetooth version: v5.0 binaural call.2. working frequency: 20-2000hz.3. support: battery display, music call..4. headphone battery capacity: 45mah.5 charging box battery capacity: 300mah.6.usb charging: the headset is full for 1 hour, and the charging compartment is full for 2 hours..7. headphone standby time: 180 hours,.8 .charging bins to charge the number of headphones: 3 times..9. continuous talk time: 2.5 hours - 3 hours,.music playback: 2.5 hours