General Brand: Havit Model: Havit I62 Physical Specification Dimensions: L199 W50 H176 mm Weight: 200g Color: Black, White Technical Specification Frequency Range: 20Hz-20KHz Driver Diameter: Φ40mm Connectivity Bluetooth Version: V5 Wireless working range: 10M (without obstacles) Others Easy foldable Rechargeable Hifi Sound Wired+Wireless, 90-degree Rotating Wireless Bluetooth headphone Power Battery: 400mAh Rechargeable Battery: Yes Charging Time: 2.5 Hours Playing Time: Up to 8 Hours