transmitter   BF-02 Single channel   Hand-held transmitter   Single channel transmitter Battery：3V CR2032 Frequency：315MHz/433MHz/868MHz BF-101 Single channel   Hand-held transmitter   Name：Double channel transmitter Battery：3V CR2032 Frequency：315MHz/433MHz/868MHz BF-102 2-channel   Hand-held transmitter   Name：6-channel LCD transmitter Battery：3V CR2032 Frequency：315MHz/433MHz/868MHz LCD-106 6-channel   Hand-held transmitter   Name：9-channel LCD transmitter Battery：3V CR2032 Frequency：315MHz/433MHz/868MHz LCD-109 9-channel   Hand-held transmitter   Name：15-channel LCD transmitter Battery：3V CR2032 Frequency：315MHz/433MHz/868MHz LCD-115 15-channel   Hand-held transmitter   ZJ01 Bracket   Hand-held transmitter   Name：Single channel wall-mounted transmitter Battery：3V CR2032 Frequency：315MHz/433MHz/868MHz BF-011 Single channel   Wall-mounted transmitter   Name：Double channel wall-mounted transmitter Battery：3V CR2032 Frequency：315MHz/433MHz/868MHz BF-012 2-channel   Wall-mounted transmitter   ZJ02 Bracket   Wall-mounted transmitter   BF-305   Hand-held transmitter   BF-301   Hand-held transmitter 9 3[1] [2] 4 :