Brand: HOCO Connection: Wireless Headphone Type: Vacuum, TWS (completely wireless) Purpose: For phone With Microphone: Yes Interface: Bluetooth Acoustic Design: Closed Design Features: Charging case, multimedia remote control Technical Features: Active noise cancellation Bluetooth Version: Bluetooth 5.3 Speaker Diameter: 10 mm Minimum Playback Frequency: 20 Hz Maximum Playback Frequency: 20,000 Hz Resistance (Impedance): 32 Ohm Battery Life: Up to 4 hours Cord Length/Range: Up to 10 m Equipment: Headphones, charging case Color: White Weight: 40 g (total) Warranty: 6 months brand warranty