Amplicom PowerTel 725 Reliant+ Amplified Phone Price $189.95 The Amplicom PowerTel 725 Reliant+™ includes the PowerTel 720 Assure+™ 50dB DECT 6.0 phone with the water resistant PowerTel 601 Wrist Shaker that vibrates and lights when there's an incoming call. Read more about Amplicom PowerTel 725 Reliant+ Amplified Phone