Description BOROFONE BW21 Fun TWS, BT v5.3 earphones, 25mAh single earphone battery for 3.5 hours of use, 120 hours of standby, 250mAh charging case 1. BT v5.3. Chip: JL AC6983. 2. Battery capacity: charging case 250mAh, earphone 25mAh. 3. Use time: 3.5 hours. Standby time 120 hours. 4. Sizes: 50*50*28mm. Total weight: 36.5g. 5. Support leader-follower switching, summon for Siri.
