Wireless your wired devices like TVs and computers! Connect to Bluetooth headphones and speakers! By connecting to the earphone jack of Bluetooth-incompatible TVs and computers, you can listen to audio wirelessly through Bluetooth headphones and speakers. Connect to two devices simultaneously! Enjoy the same sound with two people! From Bluetooth-incompatible TVs and computers to Bluetooth-compatible headphones and speakers Connectable and can connect to two headphones simultaneously! Share the sound of the TV with two people. Built-in battery, usable for about 4 hours! Can be used while powered via USB, so it's okay for long periods! With a built-in battery, it can be used continuously for up to about 4 hours, so you can use it outside, etc. You can use it while charging if you use the included USB charging cable, so you can use it for long periods. If the TV has a USB port for power supply, you can connect and power it. Small, compact design that doesn't get in the way! Lightweight, so it's convenient to carry around. It's a palm-sized, compact body. You can easily carry it around between rooms or when you go out. Bluetooth: 4.0 Size (approx.): 45mm x 11mm Weight (approx.): 14g Operating time (approx.): 4 hours Charging time (approx.): 1-2 hours Communication speed: 3Mbps Accessories: 3.5mm audio cable USB charging cable Country of manufacture: China Input: 3.5mm connection-compatible TVs, audio players such as iPods, etc. Output: Bluetooth-compatible headphones and speakers, etc. *Specifications are subject to change without notice for improvement. *This product does not have a technical suitability mark affixed. *Using this product in Japan may violate the Radio Law.