Couple:Sports stereo bluetooth headset , lover sharing earphone1. Concealed LED indicator on product, which can reflect turn on/off models.2. Natural Nontoxic silica Gel, soft and comfortable to wear, strengthen bass effect.3. High sensitive microphone.Product Parameters:Bluetooth Version4.1Bluetooth protocolHSP,HFP,A2DP and AVRCPSupportSBC , MPS decoder and APT-XTalking / Playing time6 hours/ 5 ...