kindly note:If you have any question after you receive the item , please contact us first before opening dispute and leave a comment,much appreciateHow can i get the user instruction? There is a QR code on the side of the box, scan it to get user instruction. or you can contact us, we will send you a link. Hot point : 1. Noise Canceling,6D Stereo surround Sound 2. Bluetooth-comaptible version: 5.0 or below 3. Connection distance: 10 meter 4. LED display function, you can directly understand the power and charging situation 5. Bluetooth-comaptible V5.0, support automatic pairing and most Bluetooth-compatible device 6. 3500mAh charging box, can also charge headphones and mobile phone 7. IPX5 waterproof, no need to worry about water and sweat 8. Ultra-mini body for a comfortable wearing experience 9. Function: HIFI sound quality. Volume adjustment, emergency mobile power, binaural calls, Automatic interconnection, memory matching, intelligent noise reduction Parameter: Support smart phone: Bluetooth-compatible 4.0 above smart phone Bluetooth-compatibleversion:5.0SupportAgreement:SupportHFP1.7,HSP1.2,A2DP1,AVRCP1.6,SPP1.2andPBAP1.0Bluetooth-compatible distance:about10m/32.81ft.Waterproof:IPX7waterproof, can not showering or swimmingTalktime:about3-4H(fullpowersingleuse)Listeningtothesongtime:about3-H(fullpowersingleuse)Batterytype:3.7V, 50mAHlithiumionpolymerbatteryChargingtime:about1HChargingbatterycapacity: 3300mAhWeight:150gheadphones4g Model: Bluetooth-compatible headset Package List: 2*M11 Bluetooth-compatibleHeadset 1*chargingcable 3*earcap(set) 1*charge box 1*carton Q&A:1.Which monile phone it will work with? A: All mobile phones. 2. Can i answer call with it? A: Yes, with microphone. 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? A:Ruian(10~15 days), Brazil(15 days), Spain / France/ Poland/ USA/UK(about 10 days), you can contact us for more details. 7. What if i get a item with problem? A: If you have problemwith the product, please contact our customer service first, we will resolve the iue for you within 24 hours. 8.How can i get the user instruction? A: There is a QR code on the side of the box, scan it to get user instruction