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