BoneTech Earphones, Ear-Hook Wireless Headphones Non Ear Plug Bluetooth Headset with Mic, Bone Conduction Headphones, Single Ear Hook Headset Earbud, Compatible with iPhone and Android (Red)

Specifications: Color: Black,Red,Sliver Material: plastic Size: 71.9*43.6*7mm/2.8"*1.7"*0.3" Transmission distance: 12m Bluetooth version: V4.2+EDR Bluetooth Profiles: HSP1.2?HFP1.6?A2DP1.3?AVRCP1.5?D11.3 Play time: 5-6 hours Call duration: 5-6 hours Standby time: about 100 hours Charge Time: about 1- 2 hours Battery Capacity: 90mAh Charging voltage: DC 5V Mic sensitivity: 42Db Wireless frenquency: 2.4GHZ Working temperature: 10C-50C Package Included: 1 x bone conduction headphone 1 x USB cable 1 x Manual