Recycled ABS True Wireless Stereo (TWS) 5.0 wireless stereo earbuds with 40 mAh battery built-in. Listen to your favourite music wherever you are with this set of 2 True Wireless Stereo (TWS) 5.0 earbuds. These earphones have a built in battery of 40 mAh, which gives you an approximate playing time of 4 hrs. Place them in the 300 mAh, charging station to charge them on the go. For the charging station a micro USB cable is included.