This unit is a cellular phone repeater designed for GSM/CDMA, It is a full dull duplexer frequency band limited Linear Amplifier with high gain. This device is suitable for applications in building, car, tunnel, where the place with weak signal and without signal. Specifications: 1) Operating frequency: up 890-915MH; DN935-960MHz 2) Gain: UP ≥5dB; DN ≥80dB 3) Output power: ≥0dBm 4) Smooth degree: ±2dB 5) Coverage: 2,000sqm Another item of repeater, there are GSM-970 / 960 / 950, CDMA-960: 1) GSM-970 operating frequency: a) UP 890-915MH; DN935-960MHZ b) Gain: UP≥65dB; DN ≥70dB c) Output power: ≥26dBm d) Smooth degree: ±2dB e) Coverage: 1500sqm 2) GSM-960 operating frequency: a) UP 890-915MH; DN935-960MHZ b) Gain: UP≥55dB; DN ≥60dB c) Output power: ≥23dBm d) Smooth degree: ±2dB e) Coverage: 1000sqm 3) GSM-950 operating frequency: a) UP 890-915MH; DN935-960MHz b) Gain: UP≥45dB; DN ≥50dB c) Output power: ≥20dBm d) Smooth degree: ±2dB e) Coverage: 300sqm 4) CDMA-960 operating frequency: a) UP 825-835MH; DN870-880MHZ b) Gain: UP≥55dB; DN ≥60Db c) Output power: ≥26dBm d) Smooth degree: ±2dB e) Coverage: 500sqm Packing: 10pcs/ctn Carton dimensions: 55 x 27 x 30cm N.W.: 1.5g