Features:<br> <br> High Definition Voice Tips. Call FSK/ DTMF Automatic Identification and Decoding.<br> <br> <br> 99 groups of 12/15 incoming calls, 46 groups of 12-bit deelectrification, or 18 groups of 16-bit deelectrification.<br> <br> <br> 10 groups of 16-bit double-bond memory. 3 groups of 32-bit single-bond memory.<br> <br> <br> LCD brightness 16-level adjustable. Flash time: 300MS/ 100MS/ 600MS (default)/ 1000MS.<br> <br> <br> Exit codes (0-9), long distance codes and local codes can be set.<br> <br> <br> It has the function of pre-dialing number, new call sign and repeat call sign.<br> <br> <br> Call number, call number, delete, call back.<br> <br> <br> Check incoming calls, outgoing calls, phone books or pre-dialing numbers, pick up the phone and dial out automatically.<br> <br> <br> External ringtones and built-in ringtones selection function.<br> <br> <br> Provide RJ-11 interface with 2.5mm headphone jack (for training or recording interface).<br> <br> <br> Innovative tone balance technology to restore voice clearly.<br> <br> <br> Broadband high-definition speaker, optimize the sound of voice and audio segment, fully display the perfect sound quality of human voice.<br> <br> <br> Professional microphone noise reduction technology, can screen 99% background noise.<br> <br> <br> International standards for hearing protection, effectively prevent sudden high decibel sound damage to the ear.<br> <br> <br> Slow rebound stainless steel bar, adjustable length, suitable for different head type wear.<br> <br> <br> Super soft and slow rebound earmuff, comfortable to wear, suitable for long-time wear.<br> <br> Specification:<br> Item Type: Bluetooth Speaker<br> Material: ABS<br> Optional Style: BN220+A16-RJ, BN220+A26-RJ<br> Call Box Battery: 2 * AAA 1.5V Battery (Not Included)<br> Headset:<br> Noise reduction function: dual noise reduction technology<br> Microphone: single-directional noise reduction microphone<br> Interface: RJ11 Crystal Head<br> Impedance of Impedance: 2.2K/Ω<br> Mills sensitivity: -38dB±3dB<br> Wire control function: 100-4800HZ<br> Speaker Impedance: 150Ω<br> Speaker sensitivity: 116dB±3dB<br> Size: Approx. 14.2 * 9 * 5.5cm / 5.6 * 3.5 * 2.2inch<br> Weight: Approx. 436g<br> Package List:<br> 1 * Call Box<br> 1 * Headset<br> 1 * Cable<br> 1 * Bracket<br> 1 * User Manual<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store