Product DescriptionProduct Description:Black colorItem weight: 325 gMaterial: plastic + electronic partsRange: ≤ 30 mSignal transmitter:Transmission frequency: 84-87 MHzPower : 2 AAA batteries required/DC4.5VAudio cable: 1MSignal receiver:Receiving frequency: 84-108MHZMaximum receiving distance: 30MRadio frequency: 88-108MHZPower : 2 AAA batteries requiredPackage includes:1 Headset1 Signal transmitterPackage includes:Not a tech junkie? No problem! With our wireless headphones, you don’t have to pair your device. Just turn on both devices and they’ll automatically connect to each other. Our headset also features a charging dock and transmitter - for a user-friendly audio experience.Whether you’re hard of hearing or just like to crank up the volume to enjoy your favorite shows, our over-ear headphones let you experience the full sound without constantly being told to turn it down!Thanks to wireless technology, you can use our headphones to follow your favorite series, exciting games, or watch your favorite video with high-quality sound – in perfect sync.Whether you’re playing albums on the record player, playing games on the computer, or watching your favorite show on a new model of TV, our headphones offer flexibility and compatibility for all devices with optical, AUX/3.5mm, or RCA audio connection.Immerse yourself in your shows - with up to months of battery life! The headphones also have a range of up to 100ft/30m from the transmitter, so you can enjoy the sound freely.***RUYI821**