Style:Ear Hook Communication:Wireless Connectors:USB Use:Portable Media Player Use:Mobile Phone Use:Computer Function:Bluetooth Function:Waterproof Function:Noise Cancelling Function:Microphone Place of Origin:CN;GUA Use:wireless headphones Br

"Bluetooth Version: V5.0 Transmision range: 10M Transmission Frequency: 2.4GHz Charging Time: About 1 hour Talking/Music Time: About 3 hours Standby Time: About 120 hours Charging Case Battery Capacity: 150mAh"

"Bluetooth：5.0 POP-UP Window Indicate Wireless Charging Automatic Pairing Charging box capacity：400mAh Music time：4 hours"

"Bluetooth Version: V4.2 Frenquency Range: 2.4GHz-2.48GHz Operating Distance: up to 10M Standby Time: up to 180 hours Talking/Music-Playing time: about 5-6 hours Charging Time: about 2 hours Frequency Response: 20-22kHz Operating Temperature: -10℃-