Main Features: ?? NFC function， easy to connect with audio devices?? Double earplugs design， better stereo sound effect?? In ear style， very convenient when driving and doing sports?? Multi-point pairing， can connect with two phones at the same time?? HD microphone for quality conversations?? Volume control function for sports convenient?? Come with Micro USB cable for charging?? Suitable for all Bluetooth enabled device?? Allows you to answer the call and listen to stereo music anytime and anywhereBrand: Dacom Model: Athlete Color: Red，Black，White Wearing type : In-ear with ear hook Function: Microphone，Multi connection function，NFC connection，Noise Cancelling，Answering Phone，Song Switching，Voice control，Bluetooth Connectivity : Wireless Connecting interface : Micro USB Application: Sport Sound channel: Two-channel (stereo) Frequency response: 20~20KHz Impedance: 16ohms Sensitivity: 100 ?? 3 dB Talk time: 8 hours Music Time: 8 hours Standby time: Up to 180 hours Charging time: About 2 hours Bluetooth: Yes Bluetooth version: V4.1 Bluetooth distance: W/O obstacles 10m Bluetooth protocol: A2DP，AVRCP Bluetooth mode: Hands free，HeadsetPackage weight: 0.189 kg Package size (L x W x H): 16.000 x 11.000 x 4.500 cm / 6.299 x 4.331 x 1.772 inches Package Contents: 1 x DACOM Athlete NFC Bluetooth V4.1 Hands Free Sports Earphone Dual Earplugs with Mic， 2 x Earbud， 1 x USB Cable， 1 x Bilingual User Manual in English and Chinese