Features:The earphone is wearable, which is convenient to wear when doing sports.The wireless earphone has 5.0 binaural chip, which has fast and stable connection.With bass effect, HiFi high-frequency technology and 10mm dynamic speaker unit, it brings you excellent listening experience.It has equipped with CVC8.0 built-in active noise reduction IC.With large capacity battery, it has long standby time.It supports high definition call, playback pause, answer call, call voice assistant, volume adjustment, automatic pairing, intelligent noise reduction, etc.Specification:Model: BL-05Bluetooth Version: 5.0Transmission Distance: 10mSupported Protocols: HFP/A2DP/HSP/AVRCPCharging Time: about 1 HourStandby Time：about 120 HoursMusic Time: 25 HoursCapacity: 200mAhResistance: 32ΩFrequency Response Range: 20Hz-20kHzSensitivity: 123dBProducts include1 * Bluetooth headsets1 * Charging cable1 * User Manual