http://www.infibeam.com/Mobile_Accessories/apg-bluetooth-headset-s530/P-moac-60253713279-cat-z.html#variantId=P-moac-13829522741

Small and light, stealth design.
Bluetooth version V4.0 EDR
Bluetooth profiles Hands free / Headset
Radio frequency 2.402-2.480GHz
Transmission power Class2
Multi-point connections can be connected to two phones with one Bluetooth devices simultaneously
Transmission range 10 m
Charging Power AC input 110-240V DC output 5V (charging time / about 2 hours / charging voltage 3.7v)
4 hours talk time (standby time 8.5 days / working current <15mA)
Intelligent voice prompts prompted the state of equipment / to cable
Noise MIC special top silicon Marks
Wearing styles Ear / Stealth headphones patented product
Battery type 50mA rechargeable lithium battery
Dimensions 12mm * 12mm * 12mm
Head weight of about 8.5g
Package Include:
WARRANTY
6 Months of Warranty
SALES PACKAGE
1x Bluetooth Headset
1x USB Cable