FS-X6B is a 6 channel two-way receiver designed for multi-rotor aircraft. It uses the AFHDS 2A(Automatic Frequency Hopping Digital System) protocol and dual omnidirectional antenna with superior noise reduction techniques. It's compact, easy to install and boasts a rich easy to use interface. FS-X6B support 6 channel PWM output, standard PPM output and i-BUS support for up to 18 channels alongside a reliable voltage sensor interface. Description: Item: X6B i-BUS 2.4GHz 6CH Receiver Channels: 6(PWM), 8(PPM), 18(i-BUS) Model Type: Multi-Rotor Material: PC+ metal Color: as shown RF Range: 2.408-2.475 GHz Brand Wigth: 500KHz Number of bands: 135 RF Power: No more than 20 dBm RX Sensitivity: -95dBm 2.4GHz protocol: AFHDS 2A Modulation Type: GFSK Stick resolution: 1024 Low voltage alarm: Yes DSC port: PPM/PWM/i-BUS Antenna Length: 93mm (Dual Antenna) Power input: 4.0-8.4V On-line Update: Yes(Wireless) Range: Greater than 300m Weight: 4.5g Size: 36 x 22 x 7.5mm i-BUS Port: Yes Compitable Transmitter: All AFHDS 2A Transmitter, for example FS-i10 FS-i6,FS-i6S, FS-i6X, FS-i4, FS-i4X. Note: Failsafe only work on PWM, not in PPM or IBUS. Package Contents: 1 x receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.