Feature:
True Wireless Stereo  
Bluetooth Headset: Compatible with Bluetooth-enabled Devices
Support Multi Link  
Hands-free call  
Dimension:
Earbud: 20mm*15mm*25mm
Portable charging case: 70mm*32mm*35mm
Weight:
Earbud: 0.18oz (5.2g) each
Portable charging case: 1.43oz (40.6g)
Battery type: Rechargeable lithium-ion polymer battery
Battery capacity:
Earbud: 55mAh
Portable charging case: 250mAh
Charging time:
Earbud: ≤120 minutes
Portable charging case: ≤180 minutes
Talk Time: 5h-6h
Music Time:   3h-4h
Standby time (power on): about 27 hours
Standby time (power off): about 120 days
Wireless Range: 5m-15m
Sensitivity:       120db   
Bluetooth version: 4.1
Audio enhancements: Noise reduction

• [Stereo Voice & Advanced Bluetooth 4.1 Technology] Providing great stereo sound, great noise canceling function which make you just focus on your favorite music anywhere and anytime, and clear phone calls are also supported with built - in microphone.
• [Charge Case Supply Extended Battery Life] Earbud comes with mini and portable charging case. 600 mAh battery provides extend 12 hours music and talking time.
• [Cable-free Design,No line limited] Sharing the music or movie voice with your wife, children, parents or your friends. Wireless connect range up to 10 meters (33ft).
• [Comfortable And Secure Fit] No Pains when you put this earbud in your ear for 2-3 hours.
• Compatible with iPhone SE / 6 / 6S / 6S Plus / Samsung galaxy S6 Edge S5 Note 5 / 4 / LG / Sony / Blackberry / HTC and most Bluetooth device.

[Stereo Voice & Advanced Bluetooth 4.1 Technology] Providing great stereo sound, great noise canceling function which make you just focus on your favorite music anywhere and anytime, and clear phone calls are also supported with built - in microphone.Zakio