Style:Neckband/in-ear

* Bluetooth Version: V5.3

* Support profiles: HSP,HFP,AVRCP,A2DP

* Frequency range: 2.402 GHz - 2.480GHz

* Audio range: 20Hz-20KHz

* Sound Mode: Real Stereo Bass

* 4 LED light shows battery levels along

* 6 kinds of sound effect(EQ)

* No perception low latency game mode

* Charging time: About 3.5 hours

* Voice assistant（Siri）

* Battery : Li-ion 900mAh/3.7V（or customizable）

* Charge USB: Type-C charge

* Music time: About 100 hours 

* Talk time: About 100 hours 

* Stand-by Time: Up to 3000 Hours

* Operating Distance: About 30 meters

* Output: 22mW*2

* SNR: ≥98dB±2

* Speaker Impedance: φ14mm,32Ω Bass

* Microphone: 42dB±2

* Colors: Black