Brand U & I ‎ Model TWS-5040 Type In the Ear Connectivity Wireless FEATURES Bluetooth Yes, 5.0 Bluetooth Range 10 m USB No Microphone Yes Water Resistant No Monaural No Switch between Call and Music Yes SOUND FEATURES Deep Bass Yes Frequency Response 20 Hz (Min) - 20 KHz (Max) Driver Type Dynamic EXTRA Inline Remote No POWER FEATURES Battery Charging Case: 400mAh Battery Life 4 hours Charging Time 1.5 hours WARRANTY Warranty 6 months Warranty Type Manufacturer Covered in Warranty Manufacturing Defects Not Covered in Warranty Physical Damage