Brand: Lenovo
Model name: W520
Type: Bluetooth Headset
Headphone Feature
Headphone Type: In-Ear
Frequency: 20 - 20 000 Hz
Sensitivity: 85 dB
Impedance: 32
Connectivity
Bluetooth: 3.0
Connectivity Technology: Bluetooth
Audio Feature
Microphone: Yes
Sensitivity: -42 dB
Battery
Type Of Battery: Li-Poly
Battery mAh: 90
Stand-by: Up to 100 hours
Talk Time: Up to 5 hours
Color
Color: Black
Weight
Weight: 60