Hand Feel and Cover: Made of health and environmental protection ABS material with polished paint treatment, smooth to the touch. Good for Body Health: Eliminate more than 99% of radiation absorbed from the phone, the use of safer for children and pregnant women. Easy to Operate: Allows access to phone functions when making calls, with the Pick up / Hang up button, Volume button, easy to use . Noise Reduction: High-quality speaker and microphone, noise reduction system, gives you a better call experience. Universal Design: Supplied with a 3.5mm plug, compatible with almost all mobile devices. Turn your tablet into a phone through apps. Item Type: Mini Speaker Color: White/Purple/Black/Blue/Yellow. Weight: 180g.Product size: 21*6*6.7cm Material: ABS. Parameters: Plug: 3.5mm. Frequency range: 20-20000Hz Sensitivity: 111dB 3%. Impedance: 150 ohms Speaker diameter: 38mm. Cable length: about 2 meters. Connection connector: 3.5mm four-prong Sounding mode fit: button Features: --Noise reduction system, improved call comfort. --Allows access to phone functions when making calls. --Eliminates more than 99 % of phone radiation absorbed. --Turn your tablet into a phone via Skype or VOIP apps. --Luxury smooth paint treatment. Compatible with all devices. Package content: 1 cell phone. Please contact us first when you have any problem, we will give you the best service and solve the problem ASAP. Thank you very much.