Features 1、RETRO PHONE HANDSET: The retro phone handset offers you fun and pleasure while talking. It makes your cell phone look like an original retro phone! 2、HD SPEAKER, ANTI RADIATION: Cell phone handset has HD speaker and microphone to provide you with clear sound quality. Anti radiation, safe and reliable, suitable for pregnant women. 3、MULTIFUNCTIONAL: Multifunctional cell phone handset has volume control buttons, answer and hang up buttons, 3.5mm plug. 4、EASY TO USE: Cell phone handset just needs to be plugged in. Your phone will automatically use for Opis technology and the retro earpiece works just like a standard headset! 5、CAUTIONS: The retro phone handset is compatible with for Android and IOS phones, for IOS Phone 7 7+ and higher you will need to purchase the for Opis adapter separately. Specification Item Type: Retro Phone Handset Material: ABS Package List 1 x Retro Phone Handset