Parameters:1.Bluetooth Transmission Range: 10 Meters2. Capacity: 300 Mah3.Headphone Battery Capacity: 40 Mah4.Working Time: About 2-5 hours5.Charging Time: About 1-2 hours6.Standby Time: About 150 hours7.Material: Plastics8.Waterproof Rating: IPX49.Operation Mode: Buttons10.Compatible: Android， iOS， ， Tablet， 99% of the phones with Bluetooth.Features:1. Full Frequency HIFI Moving Iron2. LED Digital Display， Real-Time Power Display， Power Level At A Glance3. The Left And Right Ears Can Be Used Separately And Can Be Independently Matched With Bluetooth Devices4. Smart Buttons Design， Easy To Operate5. Bluetooth 5.0， Low Power ConsumptionNote:When purchasing the tws Bluetooth headset， please read the following instructions: Due to long-term transportation， the power of the tws earphone will be exhausted. You will not be able to use the headset when you receive the package. It may be powered off. The first thing to do is to charge the headset box for 30 minutes. Very ant. Thank you!Packing List:1*Bluetooth Headset(L)1*Bluetooth Headset(R)1*charging box1*data cable1*manualThe box is optional. Please read carefully before placing an order Shipping and Packaging All items will be double checked and well packed before sending.Items will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). Special Announcement:Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .ReturnIf the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.