Applicable equipment: Set-top box, TV, player etc. Battery: 2 section 1.5 V AAA Remote distance: Quartile 8 -15M Remote control Angle: ± 45 ° Launch frequency: 37.9 kHz + /-0.18 kHz Key life: 200000 times frequency Product features: 1. Use the special microcontroller remote control IC, peripheral less component, province crystals (resistance to fall off) service life significantly enhanced. 2. The remote control distance than 8 m, 15 m range can remote control. Meet the luxury of the sitting room remote distance! ! ! 3. Large silica gel buttons, big character screen printing, keys feel very comfortable. Visual effect super good!