Specifications:

Multi-connect Technology
Bluetooth 4.0
Bluetooth Chipset: Qualcomm CSR 8610
Micro USB Charging Port
Connectivity: Wireless
Compatible with: Computer
Bluetooth Profile: HFP, HSP and A2DP
Application: Computer,Mobile phone
Operating range: up to 30 feet (10m)
Battery (earbuds): 60mA
Speaker : φ6mm dynamic x 1
Talk time: 5.5h
Play time: 4.5 h
Standby time: 100days
BL-X6 True Wireless Stereo