... Bluetooth Earphone,Headset,Handsfree 2) Excellent R&D group to design any items for your requirements 3) OEM ODM Features: • Bluetooth ... Water-proof, dust-proof and shock-proof• Support profile: headset profile,handsfree• Operation range: 10 meters• Frequency: 2. ... 5g• Color available: Custom color availablePackage Includes: • Bluetooth Headset • Travel charger adapter,USB cable• User Manual Waterproof ...