Serene Innovations HearAll Cell Phone Amplifier SA-40 Pair the Serene Innovations HearAll telephone amplifier with your Bluetooth cell phone (cell phone not included), then use the HearAll for amplified cell phone calls! Can't hear too well on your cell? With the HearAll? Cell Phone Amplifier SA-40, you will hear every word, even in noisy environments. No more muffled words or straining to hear! With amplification up to 100 times louder (40dB), tone control and t-coil mode, you can understand every word, with or without your hearing aid! Features: Works with virtually any Bluetooth cell phone, iPad or iPod Range approximately 30 feet between HearAll and paired cell phone Amplifies cell phone call volume up to 40 decibels Adjustable tone boost amplifies the sound frequency you want to hear Can be used as a handset Latest DSP technology eliminates static and distortion for easy listening Padded for comfort and noise isolation Built in t-coil mode allows t-coil users to hear while wearing their hearing aid without sound from the speaker Selectable speakerphone mode, together with included clip, allows for hands-free calls Talk time: up to 10 days Standby time: up to 14 days Dimensions: 5.5" L x 2" W x 1.3" H Bluetooth v2.1 +EDR profiles: HFP, HSP, A2DP Includes: HearAll Cell Phone Amplifier SA-40 Li-Ion battery AC adapter Clip User manual Warranty One year limited warranty Brand Serene Innovations Product Type Accessory UPC 0039517598779 Returns: Returns requests are accepted within 30 days of the date of purchase through Returns. Returned item(s) must be the item(s) purchased and must be returned complete in new resalable condition with nothing missing.