38 In 1 Sensor Module Kit For Arduino Rapsberry Pi Project Product Details Reed switch module 1 Small sound (Microphone) module 1 Relay module, 5V 1 Hall magnatic module 1 Joystick game controller module 1 Two-color LED module 1 flash module, 7 color 1 Light cup module 1 Bicolor LED module, 3mm 1 Tracking module 1 Big sound (Microphone sensitivity) module 1 Car avoid obstacle module 1 Flame module 1 Touch module 1 Linear hall module 1 Digital temperature module 1 Temperature and humidity module 1 Buzzer (Active) module 1 Passive buzzer module 1 Button module 1 Ball switch module 1 Temperature module, 18B20 1 Light blocking module 1 IR receiver module 1 Shock module 1 Rotary encoders module 1 Photoresistor module 1 Analog hall module 1 IR emission module 1 Analog temperature module 1 Tilt switch module 1 Mini reed module 1 Finger detect heartbeat module 1 Laser emit module 1 Tap module 1 RGB LED module 1 RGB SMD LED SMD module 1 OLED module, 0.96" 1 38 sensor modules and 1 leaflet in a plastic box. A complete set of the most commonly used electronic components for Arduino projects. A 0.96 OLED included. 100% compatible with Arduino UNO R3 MEGA 2560, Raspberry Pi and STM32. The use of DEYUE sensor kits requires basic electronics knowledge. Tutorial information is easy to find online. If you have a problem with this, please send us an e-mail. We will provide specific information for you. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.