Compatibility: TVs, computers, airplane entertainment systems, tablets, PCs, gym equipment, wired speakers, stereos, Bluetooth headphones, AirPods and so on
Specifications: *Working range: 90’-130’ (open space) *Sound Output: 75- 80dB *Frequency: 433.92 MHz *WARNING: Do not mix old and new batteries. Do not mix Alkaline, standard (Carbon-Zinc) or rechargeable batteries. Choking Hazard: Small parts not for children under 3 years or any individuals who have a tendency to place inedible objects in their mouths.