Product information:
Model: YMMKF001
Microphone directivity: Cardioid
Speaker: 5W/φ45mm
Bluetooth version: 4.2
Connection distance:7 meters (no obstacle and strong interference)
Battery: 3.7V/850mAh
Charging input: DC 5V/0.5A
Charging time: About 1.5 hours
Use time: About 4 hours
Interface: USB Type-C
Size: φ54mmX 200mm
![. Case of [12] Duracell Coppertop Alkaline Batteries C 8/Pack .](http://cdn.shopify.com/s/files/1/0683/6240/4152/products/437638_{width}x{height}.jpg?v=1668561861)
![. Case of [2] Duracell Coppertop Alkaline Batteries 9V 4/Pack .](http://cdn.shopify.com/s/files/1/0683/6240/4152/products/437630_{width}x{height}.jpg?v=1668561854)
![. Case of [2] Industrial Alkaline Batteries AAA 24 Batteries .](http://cdn.shopify.com/s/files/1/0683/6240/4152/products/438663_{width}x{height}.jpg?v=1668536480)
