孟加拉采购需求：批发手机信号放大器，WCDMA手机信号放大器，DCS手机信号放大器，2G/3G/4G放大器，4G手机信号放大器，手机信号增强器

I'm interested in purchasing a mini signal amplifier designed for enhancing mobile network reception, especially for 4G use in residential settings. The product should support multiple frequency bands, including 900, 1800, and 2100 MHz, and is expected to provide a gain of at least 65dB. Could you please provide details regarding the pricing, minimum order quantities, and lead times for delivery? Additionally, I'd appreciate any information on warranty options and installation guidance that comes with the product. Looking forward to your response!