Albrecht ATR400 Charging Case Set 30 Pieces; ideal for tourist operations; usable throughout Europe thanks to 2.4 GHz ISM band; clear voice transmission of up to 200 m range; approx. 18 hours operating time (ATR400) and 10 hours operating time (ATT400); radios can be charged directly in the case (32 charging cases, approx. 3 – 4 hours charging time); 3.5mm headphone jack for all common earphones; low susceptibility to interference due to 50 groups and digital transmission; frequency range: 2.4GHz: 2400 – 2480 MHz; operation: integrated lithium battery 3. 7 V / 1000mAh; dimensions (single unit): 86 x 50 x 19 mm; weight (single unit): 50 g; included in delivery: 1x charging case to carry up to 32 units, 29x ATR400 receiver incl. earphones, rechargeable battery and lanyard, 1x ATT400 transmitter incl. headset for the tour guide, rechargeable battery, belt clip and lanyard; note: the transmitters and receivers come in the colors gray/black and not colored as shown in the case
