1. 2014 Portable neckband design headset HBS 730 / HV 730
2. V4.0+CSR bluetooth protocol support HSP, HFP, A2DP and AVRCP/Handfree
3. Noise reduction, echo cancellation
4. Mini light weight in-earphone, easy carry, answer calls when driving car or doing sports
5. Built-in rechargeable battery
6. hi-fi stereo sound
7.Last number dialing 
8.Refusing incoming call 
9.Music play forward & backward, volume control keys
10.Working range:10m
11.It can connect two equipments at the same time.
12.Vibration reminding when phone call comes in.
13.Receiving earplugs via Magnetic suction automatically.