Mini:1. USB charging port on product body , not on control pannel , it avoid big size control pannel.2. Concealed LED indicator on product, which can reflect turn on/off models.3. Natural Nontoxic silica Gel, soft and comfortable to wear, strengthen bass effect.4. High sensitive microphone.Product Parameters:Bluetooth Version4.0Bluetooth protocolHSP,HFP,A2DP and AVRCPSupportSBC , MPS decoder and ...