Model Overview ST480-DW ST280-DW For a life on the GO Intuitive and wireless, Interton Step hearing aids bring back the sounds your customers enjoy, in every situation. Innovative features such as Personal Noise Reduction, Environmental Gain Tuner and Ear-to-ear communication available in a wide variety of models make Interton Step perfectly suited for up to 90% of people with hearing loss. With compatibility to the new 2nd generation Wireless Accessories you can offer a complete hearing system that gives your customers an enjoyable life. SOUND PROCESSING Power BTE model Step 4 Logarithmic WDRC, number of channels Total comfort programs BASICS Signal tones Power-on Delay NOISE REDUCTION Microphone Noise Reduction Adaptive Noise Reduction Personal Noise Reduction Standard Configuration Adaptive Wind Noise Reduction SPEECH UNDERSTANDING Connectivity to wireless accessories Wireless ear-to-ear communication Nano Coating technology Supports Power and High Power configurations Push button and programmable Volume Control Size 13 battery Battery door with integrated On/Off switch 5 different colors Telecoil with T and MT modes Direct Audio Input Supports Standard Earmould fittings Standard hook, mini hook, cosmetic hook and Adult and baby metal earhooks Fixed Directionality Omni Directionality Speech-Focused Directionality Auto-Steered Directionality Selectable Beam Width SoundScape technology FEEDBACK MANAGEMENT Feedback Manager Plus Feedback Manager Plus - Music Mode Pre-set Feedback Manager Fitting Protection PROTECTION Nano coating SPECIALS Fitting Requirements • Interton Appraise 2.2 Fitting Software (or higher) • Programming adaptor with CS44 socket cable • Fitting interface (see table) Datalogging AutoPhone Environmental Gain Tuner Crossover-Frequency In-situ 2.4 GHZ WIRELESS TECHNOLOGY Fitting Range Fitting Range High Power ear-to-ear communication Volume Control synchronization Push Button synchronization Comfort Phone Wireless Phone Clip Wireless Remote Control dB HL Wireless TV Streamer FITTING INTERFACE Wireless fitting with Airlink Hi-Pro NOAHlink SpeedLink Interton AS | Lautrupbjerg 7 | DK-2750 Ballerup Tel: +45 4575 1111 | www.interton.com

Technical specifications High Power Maximum output (90 dB SPL input) Total harmonic distortion Telecoil sensitivity (1 mA/m input) Full-on Telecoil sensitivity @ 1mA/m HFA – SPLIV @ 31.6 mA/m (ANSI) Equivalent input noise w/o noise reduction 1/3 Octave equivalent input noise, w/o noise reduction Frequency range (DIN 45605) Current drain (quiescent / operating) Typical battery life time (battery type 13) Maximum Output (OSPL 90) 150 Maximum Output (OSPL 90) 150 Patents pending Full-On and Reference Test Gain 80 Full-on gain 50dB SPL input 2cc Coupler Full-on gain 50dB SPL input Reference test...