Wireless Headphones for TV Watching with USB Transmitter Support FM Radio U9B6

Speaker Size: Dia. 40mm Headphone battery: 3.7V/180mAh(included) Features: Wireless Brand: Unbranded/Generic Model Number: KST-900ST Distortion: 1% Sensitivity: 100dB Charging port: Micro USB port Audio Input port: 3.5 mm earphone port MPN: Does not Apply ASIN: B09HKS8DL6 Type: Headphone Frequency Range: 88-108MHz Connectivity: a 3.5mm audio cable and an RCA audio adapter Reception Mode: FM Package Size: Approx. 22 * 19.8 * 5cm / 8.7 * 7.8 * 1.97in Headphone Weight: Approx. 138g / 4.97oz Impedance: 32Ω gtin13: Does not Apply Model: Does not Apply transmission distance: up to 30 meters Package Weight: Approx. 300g / 10.6oz Frequency Response Range: 20Hz-20KHz Number of Earpieces: Double UPC: Does not Apply Color: Black