Product Description: 1.Portable charge box , HD mirror screen surface, with bright led flashlight . 2.Powerful moving coil sound unit, restore the exquisite vocal instrumental music, solid surging drum beats, experience surround stero hifi music. 3.Bluetooth 5.1 chip, quick stable connection with ultra-low latency. 4.3500mah charge box, you can charge your earphones up to 150 hours, the earphones can last about 4 hours for every charge. 5.Finger print touch control, all operations can be done by touching . 6.The battery box can be for emergency charging for mobile phones. Parameter: Support smart phone: Bluetooth-compatible 5.1 above smart phone Bluetooth-compatibleversion:Bluetooth 5.1 SupportAgreement:SupportHFP1.7,HSP1.2,A2DP1,AVRCP1.6,SPP1.2andPBAP1.0 Bluetooth-compatible distance:about10m/32.81ft. Waterproof:IPX7waterproof, can not showering or swimming Talktime:about3-4H(fullpowersingleuse) Listeningtothesongtime:about3-H(fullpowersingleuse) Batterytype:3.7V, 50mAHlithiumionpolymerbattery Chargingtime:about1H Chargingbatterycapacity: 3500mAh Weight:150gheadphones4g Model: Bluetooth-compatible headset Package List: 2* Bluetooth-compatibleHeadset 3*earcap(set) 1*carton box 1*charge box 1*user manual 1*chargingcable Q&A: 1.Which monile phone it will work with? A: All mobile phones. 3. It is touch control? A: Yes, you can switch song or change volume or summon siri. 4: How long is the warranty of the product? A: 1 Year warranty. 5. The earphones are waterproof? A: It is daily waterproof, but you can not shower or swimming with it. 6. How long i can receive the parcel?