Bluetooth Version: CSR 4.0;BC8645
Call Waiting/Call Reject/Last Number Redial/Auto Reconnect;
Multipoint Connection/Battery Status Alert;
A2DP(Advanced Audio Distribution Profile): Yes;
AVRCP (audio video remote control profile): Yes;
apt-X Technology: Yes;
Connection Vibrate Alert: YES 
Call Vibrate Alert: YES
Talk Time: (Up To) 10Hours;
Standby Time: (Up To) 15days
Music Play Time: (Up To) 8Hours;
Charging Time: Less than 2 hours;
Form Factor: Memory Flex Neck Strap with magnetic ear buds;
Advanced Multipoint: Yes;
Neck Strap is connected by magnet;
Product Type (Wired , Mono, Stereo, Etc): Stereo;
In Box: HBS-770 Bluetooth Stereo Headset, Earbuds, Charger, User Manual.Weight:45g;
Color: Black, Black+Silver, Black+Red, Black+Golden, White+Golden, White+Silver