Description of SAXP310W: Explore and Expand. The Samson Expedition XP310w Rechargeable Portable PA answers the call of those who need great-sounding mobile audio. With 300 watts of power, 12 hours of battery life, a top-mounted 4-channel mixer and Bluetooth, the XP310w delivers huge sound to musicians, DJs or those enjoying a variety of outdoor events. It also includes a frequency-agile wireless microphone for cord-free performance. Built for Power and Mobility, The XP310w operates for up to 12 hours continuously via its built-in rechargeable lithium ion battery. Its lightweight Class D amplifier delivers 300 watts of power to a 2-way speaker system with a 10" woofer and 1" tweeter. This is all housed in a rugged polypropylene enclosure with a steel grille that weighs 27.5 pounds. And with a locking telescopic handle and smooth rolling wheels, transporting the XP310 is as easy as it gets. Plus, a 1 3/8" speaker stand receptacle allows the XP310w to be mounted using any standard speaker stand. On Top of That... A Full-featured Mixer, Equipped with a top-mounted 4-channel mixer that includes XLR, 1/4" and 1/8" inputs for connecting microphones and line level devices, the XP310w makes for quick and easy setup. The speaker can also stream music wirelessly from any Bluetooth device. A variable reverb control adds depth, and a voiceover ducker automatically lowers the music when speaking or singing into a microphone (XLR or wireless inputs). In addition, a master 2-band EQ is provided to adjust the tonal characteristics of the XP310w, as is a line output to daisy-chain additional speakers. Wireless XPansion, Perfect for multi-performer vocal and speech applications, the XP310w is capable of handling up to three wireless systems simultaneously. The XP310w comes with a single Concert 88a Handheld Frequency-agile UHF Wireless System that offers up to 300' of operation. An extra wireless receiver slot is included for adding a second Concert 88a Series wireless system (sold separately), while the USB wireless port allows you to also integrate an XPD Series USB Digital Wireless System (sold separately). Description of SWXPD2BLM8: Re-introducing USB Digital Wireless. The Samson XPD2 Lavalier system allows you to bring a wireless microphone to a variety of sound applications via its uniquely designed USB stick receiver. Offering simple setup, professional full-range audio and 100' of wireless operation, the XPD2 Lavalier is perfect for live performances, digital communications and mobile productions. More Ways To Connect. The RXD2 USB stick receiver connects directly to PC or Mac computers, or with any Samson Expedition Series Portable PA System that features a USB Wireless port. An added feature from the previous generation system, the 1/8" (3.5mm) output allows for headphone monitoring or the XPD2 Handheld to be used with any device that has an analog line input, including smartphones and other mobile devices. *To connect to an iOS device you will need to use Apple's Lightning to USB Camera adapter. To connect to an Android device, you will need a host OTG adapter. So Why Wires? XPD2 Wireless delivers high-quality audio using digital transmission. This type of wireless technology allows the transmitter to send an uncompressed signal to the receiver, so your audio will have greater signal-to-noise when compared to a traditional wireless system. The result is a performance that sounds as good as using a wired microphone.