Wireless Tech 5.0 - Adopt the most advanced Wireless 5.0 technology, support all stereo music format, fast and fluent streaming transaction. 
Auto Pairing & On-Ear Control - Auto power on and enter pairing mode right after out of charging case. User-friendly on-ear button on each side supports play/pause, switching tracks and handling phone calls easily.
Hi-Fi Stereo Sound Quality - With using lossless HD rendering technology, AD Earbuds provides incredible truly natural, authentic sound and powerful bass performance.
Comfort Fit Your Ears - The sophisticated earbuds design fit all users ears without any sting or uncomfortable feeling. 
Binaural call-in and Big Charging Case - Built-in microphones in both earbuds to offer you to select single or both earbuds to receive voice. The 1500mAh big charging case provides you 35 hours playtime.
 
Product Description
Alpha Digital Earbuds had adopted the latest Wireless 5.0 technology that provides more stable and smoother wireless transaction of voice. The sophisticated earbuds is suitable for all users ears, you will never feel sting your ear. The 1500mAh charging case allows you charge your earbuds more than 12 times, and each charge can display 3.5 hours, and it even can be used to charge your mobile phone. The powerful Bass will impress you deeply.  One-button operates power on/off/Pause/Play/Answer/Hang up/Reject.
 
Specifications:
Chip: Bluetrum 
Version: V5.0+EDR
Frequency band: 2.4GHZ
Working distance: 10 meters with no obstacles
Working temperature: -d -10~55℃
Speaker impedance: φ8MM 32Ω
Microphones sensitivity: 42Db
Battery(Earphone): 50mAh
Battery(Charger case): 1500mAh
Standby time: About 120hours
Time to listen music: About 4hours
Charging time: About 1hour
Support : A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3
Net weight(Earphone): 4g*2