System : Hybrid technology
Driver size : 9.2mm + Quad Balance Armature
Dynamic : frequency response range10-40kHz
Sensitivity : 116dB SPL/V@1kHz
Impedance : 18 ohm
Bluetooth transmitted power : 0-4dbm
Bluetooth transmitted modulation : GFSK, π/4 DQPSK, 8DPSK
Bluetooth frequency : 2.402 - 2.480GHz
Bluetooth profiles : A2DP V1.2, AVRCP V1.4, HFP V1.6, HSP V1.2
Bluetooth version : V4.1
Battery type :Lithium-ion
Polymer rechargeable battery :120mA/3.7V 
Charging time :<2 hours
Music playtime with BT on :8 hours
Talk time with BT on :8 hours
Weight (g) :11.4g

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