Hamilton Buhl 12 Station Bluetooth Wireless Listening Center, 12 W901-MULTI Headphones with 1 W900-BLTM Transmitter The Hamilton LCP/12/901BT Bluetooth Wireless Listening Center allows you to connect to the wireless transmitter via Bluetooth with your tablet, mobile device or any unit with Bluetooth capabilities. The audio is then transmitted to the wireless headphones via a wireless FM signal. It is perfect for multimedia, lab, and classroom applications Entire system can be switched between 4 different frequencies with easy color-coded switches; add additional transmitters to have up to 4 different channels of audio simultaneously W900-BLTM Wireless Bluetooth Transmitter transmits high quality audio via VHF to W901 series headphones within a 300 foot range. Connects to any analog audio source through a 1/8" stereo mini plug. Switchable between 4 frequencies W901-MULTI multi-channeled headphones provide 50 hours of listening time between charges with only an 8 hour charge time. Superb sound quality without wires or interference System includes: 1 W900-BLTM wireless bluetooth transmitter; 12 W901-MULTI multi-channeled headphones; 1 lockable carrying case (lock not included); 2 6-way charging cables; 1 AC adapter (1) Bluetooth Wireless Transmitter (W900-BLTM) (12) Wireless Multi-Channeled Headphones (W901-Multi) (2) AC Power Adapter (W980) for use with transmitter and headphone charging (NOTE: A single AC power adapter is only capable of charging 6 wireless headphones at one time. Do not combine two 6-way charging cables with one AC power adapter). (2) 6-way charging cables (W990) for wireless headphone charging (1) lockable carrying case (lock not included)