Easy Controllit could be operated by the app on smartphone.Multi-function Bluetooth transmitter&receiverIn TX Mode: Transfer your music from a TV, CD player, Ipod, laptop to a Bluetooth headset or stereo (You can connect two devices at the same time); In RX Mode: will transfer the music in your mobile phone or computer to the audio, so that you can enjoy HIFI CD freely The sound quality. Bypa mode: cable connection between TV and Speaker, you no longer need to plug/unplug any wires,easily switch it to other two mode.262FT Ultra Long RangeUtilizing the latest Bluetooth 5.0 technology and dual antennas design, Our Bluetooth transmitter / receiver can achieve a range of up to 262ft(80m) line-of-sight in open air and up to 80-110ft(25-35m) indoors, which ensures a stable connection without losing signal wherever you go in your big house. *NOTE: Operation range can be affected by Wi-Fi routers, wirele TV adapters and also depends on the receiving devices.The Ultimate Listening ExperienceSupport low latency, virtually eliminating visual and auditory delays, you can simultaneously steam audio to 2 Bluetooth headsets, makingbluetooth headphones become the best choice for watching TV and movies. Note: In order to achieve this low latency, your receiving setup must support low latency.USB RechargeableIt has built-in 450mAh battery, this is a UNIQUE feature compared to similar products, you can use it in any situations even there is no AC outlets. It can be fully charged in 2.5 hours but allows for more than 10 hours in TX mode & 10 hours in RX mode of solid use, which is ideal for listening all day or on a long road trip, also you can use it while charging. *Note: This product will automatically enter the dormant and power-saving mode after 6 minutes without connection.Easy Set Up, Easy UseSupports remember your setting after power failure. Supports AUX / SPDIF audio output standards making it compatible with 99% of the TVs on the market. Setup is a snap simply connect your transmitter/receiver to an outlet and your audio system, pair it to a phone or tablet and enjoy the music.Product parameters:Bluetooth version: V5.0, low latency,one pair twoBluetooth chip: 8675, HD, low lantencyFrequency range: 2.402GHz-2.480GHzCommunication distance: RX: 80M, TX: 80MBluetooth protocol: A2DP, AVRCP;one pair twoEncoding and decoding method: SBCPower supply mode: Type-C interfaceBuit-in Battery: 450mAnWorking time: up to 17 hoursWorking temperature: -10C-55CMain machine size: 57*57*17mmColor box size: 120*105*35mmMain unit weight: 41.5gFull set weight: 190gPacking list:1x Bluetooth Adapter1x 3.5mm Audio Cable1x USB charging Cable1x RCA Audio Cable1x SPDIF Cable1x User's manual