Ignite 20 BTE is a non-wireless technology digital hearing aid. Fitting Range upto 110dBHL. 4 Channels with 4 Bands. PureWave Feedback Eliminator. Invision Directionality. Multiple Memories. Voice Indicators. Automatic Telephone Response. Sweep Technology, Hydrashield2. Self Learning. Spectral iQ. Swap Fit. Voice iQ.