Thanks to this TWS153C Bluetooth® 5.0 earbuds, no cables or tangles needed. Two Bluetooth® earbuds with a 40mAh battery each. These earbuds have a wireless charging case. Always charged: charging case with 350mAh. that will provide op to 3 charging cycles, up to 3-4 hours use in total Autonomy 3 to 4 hours of use in individual mode and 2 to 3 hours with both earbuds. The connection with Bluetooth® 5.0 with distance up to 10 meters. Integrated handsfree function. These earbuds are comfortable and have an ergonomic design. The earbuds come with a silicone case and luxury giftbox. Plastic.