* Bluetooth Version: V5.3 

* bluetooth chip：JL

* Support profiles: HSP,HFP,AVRCP,A2DP

* BT frequency: 2.402 GHz - 2.480GHz

* Sound Mode: Real bass Stereo

* Music time: About 15+ hours

* Talk time: About 15+hours

* Charging time: About 2 hours

* Operating Distance: about 30 meters

* Power Source: Li-ion Battery 400mAh

* With FM radio: 87.5-108.0MHz

* TF card input:  Support 256M-32G

* Aux line in: 3.5mm socket  

* Output: 22mW*2

* SNR: ≥95dB

* Speaker Impedance: 32 ohms/40mm

* Microphone: -42dB±3

* Foldaway design

* Type-C charging port

* Colors: black,Gray,Red