Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Product ParametersMax Sound Output: 130±5dBSound Gain: >=50dBHarmonic Distortion: ≤5%Frequency Range: 300-4000HzInput Noise: <= 30dBVoltage: D.C.1.5VCurrent: <=4mABattery size: AG75/AG1 3Product FeaturesConvenient wearLow noise， low distortion;For people with severe hearing loss;Product use hearing assistive devices.The scope of application of gas conduction hearing disorders.Taboos otitis media or ear suppuration who are disabled.What is Included1xHearing Aid3xDomes3xBatteriesHow to put it onThe wire plug connected to the headset.Then earplug connector (hard) to the headset， earbuds (silica gel) to connect to the headphone connector pedestal Battery InstallationGently open the battery compartment cover， put a AG13/LR44 battery into the battery compartment in the right direction， then close the battery compartment .Program Switch and Volume ControlBefore you use this item ，you have to turn the O-N switch to O(off)，and turn the sound volume to minimumThen put this item on you ear， keep it tightlyNext， turn this item on(O-N to N)， adjust the volume until you hear clear sound