EB-TWS538W Bluetooth Headphones with Microphone

Headphone type: Bluetooth, in-ear
Frequency range (Hz): 20-20000
Headphone resistance (Ohm): 32
Headphone sensitivity (dB): 102 +/- 3
Earphone size (mm): 8
Interface: Bluetooth 5.2 / Type-C (for charging)
Material: Plastic
Color: Black
Talk time / music time (h): 3
Charging time (h): 1
Working distance (m): 10
Chip: JL6983D2
Battery: lithium-polymer, earphone 30 mAh + charging case 200 mAh
Dimensions (mm): 18x25x25 (earphones) / 44x44x35 (Charging case)