Technical Specification:

Brand: Xiaomi
Model: TDLYEJ01JY
Charging Time.: 2.5H
Compatible with: iPhone,Mobile phone
Connecting interface: USB
Connectivity: Wireless
Driver unit: 40mm
Frequency response: 20Hz – 40KHz
Impedance: 32ohms
Music Time: 10h
Sensitivity: 107dB
Standby time: 40h
Talk time: 8h

Features:

Xiaomi Wireless bluetooth Headset——Music accompanies you, listening to sounds anytime, anywhere.
φ40mm Dynamic Driver——Large dynamic ring, large voice coil, large diaphragm, all to achieve even more bass. Closed sound cavity design, effectively guarantee the transmisstion of sound.
Noise reduction technology——Dual microphone with noise cancelling, create a private space in a noisy environment.
Ergonomic and comfortable headband design——Fit the head type, adujustable telescopic headset for comfortable listening all the day.
Long battery life——You can play your favorite music for 10 hours, to meet the needs of a full day of listening songs, a good sound at all times uninterrupted.