Brand model: BT506
 

 Battery type: polymer lithium battery
 

 Bluetooth version: Bluetooth5.0
 

 Battery capacity: 3.7v 1600mAh, 7.4wH
 

 Support protocol: A2DP, AVRCP, HFP, HSP
 

 Charging interface: Micro USB, DC5V===2A
 

 Card slot: MicroSD card/TF card (maximum support 32G) Connection distance: about 10 meters (accessible)
 

 Audio interface: 3.5mm audio
 

 Support call: yes