Wireless Bluetooth headset black color brand Guess

Gis Wireless Headphones Product description: • Bluetooth version: 5.4 • Frequency: 2.402 GHz - 2.480 GHz • Driver size: 40 mm • Sensitivity: 105±3 dB • Resistance: 32 ohms ±15% • Input: 5 volts / 500 milliamps • Playtime: 30 hours • Playtime with active noise cancellation (ANC): 20 hours • Battery capacity: 3.7 volts / 400 milliamps • Charging time: two hours • Transmission range: 10 meters • Output power: 25 milliwatts * 2 • Connection: USB-C • Water resistance level: IPX4 • Supports voice assistant and hands-free calling