Model: NF-806B - Color: Blue - Easily find the fault wire among a large amount of wires - Directly check the network wire order - Open circuit/ short circuit testing - Volume adjustable - Transmitter with RJ11+RJ45 interfaces (34cm cable) - Receiver with white LED light included - Transmitter uses 1 x 6F22 9V battery (included) - Receiver uses 1 x 6F22 9V battery (included) - Signal transmission format: Multi-frequency impulse - Output level: 8Vp-p - Transmission range: at least 3km - Package includes: - 1 x Transmitter - 1 x Receiver - 1 x RJ45 cable (12.5cm length) - 1 x 3.5mm earphone (100cm length) - 1 x Carrying pouch - 1 x Chinese manual