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

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