10 गुना तक बैकअप वाला ब्लूटूथ ईरफ़ोन बनाये:-MAKE A WIRELESS EARPHONE WITH TEN TIMES BATTERY BACKUP
in this video i show that how to make a wireless bluetooth earphone with a big battery replace the small battery of bluetooth earphone with a big and more mAH power battery.
after add big battery you can get the battery backup of your bluetooth headphone up to 30 days .
you need a small size bluetooth kit, battery, old or broken earphone.
#howtomake
#wirelessearphone
#batterybackup
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