CLEAR CONVERSAION & NATURAL-SOUNDING AUDIO -- You will get the hear-and-be-heard advantages of a DAROMAX earphone, thanks to advanced unidirectional noise reduction microphone technology and fast stable Bluetooth 5.0 transmission. | 8 HOURS TALK TIME -- Up to 8 hours non-stop talk time and 10 days standby time with single charged in just 2 hours. Noted: 5V Charger Only. Over voltage will damage battery. | UNIVERSAL COMPATIBLE -- Wireless Bluetooth 5.0 head set supports easy and fast pairing with smart phones and tablets, compatible with iPhone, Samsung, Motorola, Huawei, Xiaomi, HTC, Nokia and other cell phones, including iPhone X XR Pro 8/8s 7 Plus 6s 6 SE Samsung Galaxy S10 S9 S8 Edge S7 S6 Note 8/5 etc. | CONNECT 2 DEVICES SIMULTANEOUSLY -- Allow two Bluetooth cellphones to connect at the same time. Even if two mobile phones are connected, Never miss a call.