• Secure and Comfy Fit-These wireless headphones sport with adjustable earhooks are made of soft silicone material for secure and comfy fit,  ergonomic design allows the lightweight earphones stay on your ears firmly, so you can enjoy indoor/outdoor activity without hurting especially when running or working out.

• Immerse Yourself in Music-Benefit from the Bluetooth 4.2 technology and 12 mm dynamic drivers , the Bluetooth earbuds will let you enjoiy HiFi stereo sound of deep bass and crystal clear treble from more stable signal transmission and lower power consumption.

• Super Long Playtime-The super long-lasting wireless bluetooth headphones meet all your demands for travel and fitness. With the 400mAh Charging Case, you can enjoy a bilateral call for 2 hours.

Specifications:

• Functions: power display, voice control, call function, support music, multi-point connection, NFC function
• Vocal Track: Stereo
• Usage: Earplug type
• Single ear weight: about 4 grams
• Bluetooth Version: V4.2
• Bilateral call duration: about 2 hours
• Single-ear call duration: about 3 hours
• Use radius: 8-10 meters
• Headphone battery capacity: 60 mA
• Headphone charging time: about 60 minutes
• Support Language: Chinese Power Cabin Battery Capacity: 400 mA
• Power supply cabin power supply times: about 3 times
• Charging time of power cabin: about 3 hours
• Charging Voltage of Power Cabin: 5V
• USB charge

Note: Polymer Lithium Batteries are not removable.