specification:Comes with a large charging case, so you can charge the headset at any time.Wide compatibility: Support all Bluetooth phones, tablets, laptops, etc.Bluetooth 5.0 headset, faster and more stable.Support pop-up function.Product name: Bluetooth headsetMaterial: ABSBluetooth version: 5.0Talk time: 2-3 hoursHeadphone battery capacity: 35 mAh (included)Charging box battery capacity: 300mAh (tax included)Headphone charging time: 1 hourFunction: wireless, Bluetooth connection, wirelessCharging box size: 5.5 cm x 4 cm x 2 cm / 2.17 inches x 1.57 inches x 0.79 inches (approximately)Remarks:Due to different lighting and screen settings, the color of the item may be slightly different from the picture.Due to the difference in manual measurement, please allow slightly different dimensions.The package includes:2 Bluetooth headsets1 x charging box1 x charging cable1 x user manual