Denver TWE-38 Truly wireless Bluetooth earbuds Features: Enjoy music without any cords Bluetooth version V5.0 Earbuds with touch control Operating range: up to 10 meters Each earphone has 40mAh battery Charging case: 300mAh Charging case with LED digits to show battery level Built-in microphone for calls Charge the earbuds in the charging case Talk/music time: Up to 4 hours Specifications: Highlights Truly wireless Bluetooth earbuds with charging case & handsfree function, LED digits to show battery level Battery Built-in rechargeable battery (40mAh in each earphone) + charging case with 300mAh battery Headphones Bluetooth V5.0 Materials Plastic earbuds. Charging case is made of durable plastic