Here are some of the technical specifications of the headphones:

Bluetooth Version: V5.1
Range: 10 meters
Speakers: 40mm
Battery Life: 10 hours
Charging Time: 2 hours
Standby Time: 170 hours
Input Voltage: 3.7-5V DC
Battery: 400mAh
Weight: 260g
Overall, the New P9 Plus Max Wireless Bluetooth Headphones are a great choice for anyone looking for a versatile and comfortable pair of headphones.