smavco Bundle ST-BTPN Battery for Crestron ST-1550, STX-1550, STX-1550C, SmarTouch 1550, ST-1700, ST-1700C, STX-1700C, STX-1700CW, STX-1700CXP Plus Stereo Audio Cable, 3600mAh Capacity: 3600mah Dimension: 108.00 x 58.00 x 30.00mm Compatible part nos: ST-BTPN Compatible models: Crestron ST-1550, STX-1550, STX-1550C, SmarTouch 1550, ST-1700, ST-1700C