Specification:

Name: G11 magnet ring wireless headphones
Bluetooth standard: Bluetooth V4.1
Operation: class 2
Bluetooth mode: A2DP/HFP/HSP/AVRCP 
Frequency: 20Hz-18kHz
Operating range: up to 30ft (10 meters)
Degree of distortion: ≤3%
Talk time: up to 8 hours
Music time: up to 12hours
Standby time: up to 200 hours

Outstanding audio technology
 
6G CVC noise reduction 
 
Smart voice alerts 
 
Pair two devices and take call from either 
 
iOS displays headset power meter 
 
Sweet Bluetooth headset to use the world's top CSR 8645 chip, quality assurance
 
High-end fashionable design, colorful Bluetooth headset models
 
Building in polymer Lithium battery extended battery lifespan, whispered
 
Talk-time alerts and noise reduction features
 
Power switch lets you extend battery lifespan
 
Comfortably fits either ear