P this amplified hearing assistant is great for balance control and ideal for those poor of hearing as it has tone control and volume control up to 25db. This amplifier has special coating for noise free handling and has a super sensitive microphone. A rechargeable battery and charger is included. P p t coil p p the t coil is compatible with loop amplifiers and comprises of an extension microphone for personal tv amplification. P p features p ul li volume and tone control li super sensitive microphone li special coating for noise free handling li 10 15 hours talk time li balance control li ultra light headset li belt clip li luxury carry case li ul p specifications p ul li size 5.7 x 2.7 x 10cm li weight 75g li frequency range 100 to 8000hz li t coil sensitivity 60dbv, 1khz, 100ma m li tone control 5db li ul