What's in the box:

TVLINK Modulator AV to RF Convertor & IR Extender RF Modulator (Standard)

Features:
Using existing RF circuit in general homes. Remote control signal and power can be transmitted via RF.
Share of STB, DVD with a few rooms. At the same time having the function of remote control in the rooms when the STB, DVD, DVR are positioned in the living room.
Flexibilities in setting TV format such as PAL/NTSC and Sound IF to accommodate users from all part of the world.
With the wide frequency range of 471.25MHz ~885.25MHz, both formats of VHF and UHF can be used. Selectable transmitting frequency and correspondence frequency display and in built memory will minimize and avoid interference.
The use of broadcast standard PCB Circuit designed enhanced stability and better picture quality further.
External setting for NTSC/PAL B/G, I, D/K, L. M/N TV formats for global use.

Specifications:
Material: ABS
RF Frequency Range: 471.25MHz~855.25MHz
Channel Range: 21~69
Default Factory Setting: Channel 21 (471.25MHz). PAL I, 38KHz
RF Output Impedance: 75O unbalanced
Video Input Impedance: 75O
TV Format: PAL/NTSC
Sound Carrier Frequency: 4.5/5.5/6.0/6.5MHz
Remote Distance: 10m
Transmitter Distance: 30cm
Remote Control Frequency: 38/56KHz
Power: USB 5V
Power Consumption: 500mW
Item Size: 117 * 57 * 24mm / 4.61 * 2.24 * 0.94in
Item Weight: 107g / 3.79oz
Package Weight: 124g / 4.38oz
Package Size: 12 * 9.5 * 2.5cm / 4.72 * 3.74 * 0.98in

Packing List:
1 * Modulator
1 * USB Cable
1 * IR Emitter Cable
1 * Manual (English)