... 4. Compatible with Iphone,Nokia, Samsung,HTC... Handset Receiver For Mobile Phone---Iphone, Nokia, Samsung...Features:1. Radiatoin Proof2. Clear Voice ... don't need to adjust the largest volume from the mobile phone)7. Led light, answering/hanging up buttonsSpecifications:1. ... . Colors: Blue, Red, purple, yellow, pink, green, orange, black, whiter, pearly white3. OEM&ODM provided4. Frequency:20-20000Hz 5 ...