Meridian Technology InsideAmbient Sound ModeNoise Reduction & Echo CancellationTone Free AppFind My Earbuds (Via Tone App)Automatic Ear DetectionBluetooth Connectivity6 Hours Battery Life18 Hours Combined with Charging Case5 Minute Charge Gives 1 Hour of PlaybackWater Resistant (IPX4 Rated)Includes:3 Pair of Ear Gels (Large Medium & Small)Data CableCharging CaseColour: BlackH55 x W55 x D28 mm (Charging Case)