Specifications
the t.bone free 300 PT 548
Wireless System with Pocket Transmitter
- Frequency range: 548 – 572 MHz
- 3 pre-programmed frequency groups, each with 10 channels
- 6 systems can be operated in parallel
- LCD display: frequency group selection, battery indicator, AF/RF signal strength
- The selected frequency and volume can be switched between the handheld transmitter and the pocket transmitter (the two channels cannot be used simultaneously)
- Infrared transmission of the setting from the receiver to the transmitter
- Adjustable gain: 0-25 dB
- Range: 100 m (line-of-sight)
- Connections: XLR (balanced), 6.5 mm jack (unbalanced)
- 2 BNC antennas for Diversity
- Operates with a 12V 1A DC power supply
- Dimensions: (W x H x D) 210 x 45 x 193 mm
- Weight: 0.95 kg
- Includes rack mount
- Frequency range: 548 – 572 MHz
- 3 pre-programmed frequency groups, each with 10 channels
- 6 systems can be operated in parallel
- LCD display: frequency group selection, battery indicator, AF/RF signal strength
- The selected frequency and volume can be switched between the handheld transmitter and the pocket transmitter (the two channels cannot be used simultaneously)
- Infrared transmission of the setting from the receiver to the transmitter
- Adjustable gain: 0-25 dB
- Range: 100 m (line-of-sight)
- Connections: XLR (balanced), 6.5 mm jack (unbalanced)
- 2 BNC antennas for Diversity
- Operates with a 12V 1A DC power supply
- Dimensions: (W x H x D) 210 x 45 x 193 mm
- Weight: 0.95 kg
- Includes rack mount
- 3-pin TQG connector
- Frequency band: 821–832 / 863–865 MHz
- Battery life: approx. 8 hours (talk time), approx. 12 hours (standby)
- LCD display: Selected frequency, battery indicator
- Option to scan the receiver frequency
- Detachable antenna
- Powered by 2 x 1.5 V AA batteries or rechargeable batteries (not included)
- Dimensions (W x D x H): 94 x 64 x 34 mm
Wireless
flexibility in the 548–572 MHz band

With three pre-programmed frequency groups (10 channels each), it supports up to six parallel systems and ensures stable operation. The LCD display on the receiver and pocket transmitter provides clear information on important settings.
Professional features for seamless performances

The pocket transmitter features a 3-pin TQG connector for compatibility with microphones and instruments, as well as a removable antenna for adaptable setups. It offers a battery life of up to 8 hours (talk time) or 12 hours (standby) and runs on 2x 1.5V AA batteries or rechargeables (not included). The infrared sync function simplifies setup by transferring settings from the receiver to the transmitter, while the adjustable gain (0–25 dB) ensures optimal signal strength. The system can be switched between handheld and pocket transmitter modes. The receiver includes a frequency scanner for automatic channel selection, XLR (balanced) and 6.35 mm jack (unbalanced) outputs, and 2x BNC antenna connections for diversity reception. Powered by a 12V 1A DC power supply, it is rack-mountable and compact (210 x 45 x 193 mm, 0.95 kg).
Reliable
and compact for live and rehearsal

With a range of up to 100 m (line of sight), the Free 300 PT 548 is ideal for musicians who need a versatile and dependable wireless system for live performances, rehearsals, or events. Its compact pocket transmitter (94 x 64 x 34 mm) and professional features make it a practical choice for any stage application.