Features:Only for headset 3.5 mm jacks. It is a unique voice change system designed to work with most existing phones and computers, especially for Android and for iOS. When plugged into the headphone jack, the system will automatically turn on. Just plug the voice converter headphone jack into your phone and put your microphone to your mouth to speak normally. There are 4 voice conversion modes that can better camouflage different voice pitches. The headset sends back real-time voice as you speak, making it easy to see the sound quality. Designed for portable, simple, powerful, and truly sound-changing companions. Specification:Model Number: Voice Changer MicrophoneCompatible Brand: For iOS/AndroidSize: Approx. 12 x 3.5 cm/ 4.7 x 1.4 inPackage Weight: 221 gPackage list:1 * Microphone1 * Audio Cable1 * USB CableNote:1. Your phone or computer should be equipped with a 3.5 mm headphone jack.2. Manual measurement, please allow 1~3mm error, thank you.3. Due to the difference between the different displays, the picture may not reflect the actual color of the item. We guarantee that the style is the same as shown in the picture.4. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.Connection Instructions:1. Charge the microphone for about 2 hours before using it.2. Download the K song software on the mobile phone, and take out the rounded head of the microphone recording cable to connect the microphone mobile phone identification hole, the other round head to connect the earphone hole of the mobile phone, and then take out the earphone identification hole of the earphone connected to the round hole of the microphone.3. Turn on the power, the green indicator light is on, press the microphone sound and adjust the reverb sound effect and then you can sing..