1ps 40mm 5~10W Full-range bass Bluetooth wifi Speaker neodymium hifi LoudspeakerModel: 40MMCategory: electric (moving coil)Purpose: fidelity (home)Shape: 40 SquareThe composition: a combination of coneDiaphragm material: non-paperMagnetic circuit forms: internal magneticFrequency: full frequency band (full range)Rated power: 5-10 (W)Nominal Impedance: 4 (Ω)40mm .3-4Ω 10-15WDimension: 40mm square (round)Normal Impendance: 4Ω ± 15% at 1KHZSensitivity (S.P.L): 112 ± 3dBFrequency Range: 20 HZ- 2 0KHZRated input: 10WMax input:. 12WOperating Temperature: -20- + 60 ℃ If you want to buy in bulk, please use ebay "Make Offer" function,We can give you some discounts!We will ship out within 24hrs !Package Content:1pcs x SpeakersPaymentShipping PolicyReturns PolicyAbout FeedbackEbay messagePayment1. All payments must be prepaid.2. We only accept payment via Paypal. Please kindly check if you can do the payment via PayPal before placing an order. Shipping Policy1. We are not responsible for undeliverable address. We reserve the right to charge the shipping fee again for returned items due to wrong address.2. Items are generally shipped out the next business day after your payment has been cleared (Sat. & Sun. excluded.)3. Orders from the United States will all be shipped out via USPS. The shipment usually takes 3-7 business days(Saturday and Sunday excluded), if you need the item urgently, please contact us for detail before purchase.4. Local pick up is not available.5. Customers in Porto Rico, Alaska and Hawaii are recommended to contact us for shipping details(shipping cost&time) before placing an order.Returns Policy1. We offer 30 days money back guarantee return policy.2. Our warranty does not extended to any products that are physically damaged or that are not under normal operating conditions as a result of misuse or improper installation on the buyer/user's part.3. For all returned products, buyers MUST contact us for the returning address.4. In all cases, buyers pay shipping fees at their own cost to return products for exchange or refund. We will be responsible for the postage of replacements. Refund will be made upon receipt of the returned item.About Feedback1. Our goal is to make sure you have a pleasant shopping experience with us. If there is any dissatisfaction, please email us before leaving any 1 or 2 ratings, negative feedback or open any ebay or paypal dispute. We will try our best to resolve the issues. Please give us the opportunity to resolve any problem.2. If you are satisfied with our service, please leave us a 5 star positive feedback. Your recognition will make us more confident to develop business and serve you better.Ebay message1. We have always been trying to provide the best service and reliable products for every customer, however, accident may happen sometimes, We can use ebay message to communicate to resolve any issue before leaving a negative feedback.